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W12 engine

In August this year, Bentley unveiled the Batur coupe, a very exclusive model to be built by Bentley Mulliner and limited to only 18 units, each priced at from £1.65 million (about RM8.9 million). Named after a beautiful lake in Bali, the Batur is the second bespoke project by Bentley Mulliner after the Bacalar and the first customers (all units have already been booked) should start getting their cars in mid-2023..

With development work completed and two prototypes available, real-world testing is now underway to verify the performance after an extensive engineering program. The validation activities, with more than 120 individual tests, include durability for both the engine and whole vehicle, environmental compatibility and sunlight simulation, high speed stability, aerodynamics, noise & vibration, and driving dynamics.

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The Speed badge on Bentley models, which goes back to the 1930s, signifies versions with an extra measure of performance. Typically, Speed versions have been at the top of their respective ranges and today, there are Speed versions for the Bentayga and the Continental. They are now joined by the new Flying Spur Speed, completing Bentley’s portfolio of Grand Tourers.

The Flying Spur Speed, which sits above the S model, has the familiar exterior Speed styling cues like  dark tint finishes to the front grilles, headlamps and tail lamps, and of course, Speed badges on the lower wing. Also standard are jewelled fuel and oil filler caps, with the unique 22-inch Speed wheel as standard (a second optional 22-inch sports design is also available).

For customers who want to increase the performance-focused image even further, Bentley also offers its Styling Specification (carbonfibre front splitter, side skirts, rear diffuser and subtle bootlid spoiler) and Blackline Specification which can be included at the time of purchase.

Crafted by hand in high gloss carbonfibre to exact tolerances following an extensive development programme, the Blackline Specification provides a contemporary alternative where most of the brightwork on the exterior of the car is replaced with Blackware.

The Flying Spur Speed’s 6-litre W12 powertrain produces an extra 85 ps/130 Nm for a total output of 635 ps/900 Nm. The improved output enables the car to go from 0 to 100 km/h in a claimed 3.8 seconds, and on to a top speed of 333 km/h. Maximum speed is reached in sixth gear with the same 8-speed ZF dual-clutch transmission as the Continental GT, the overdrive gears (seventh and eighth) being used  to reduce fuel consumption when cruising.

The mighty Bentley W12 engine will be retired after 2026.

The clutched system delivers drive to the rear axle and depending on the road conditions and wheel slip, it will then automatically send drive to the front axle as required, as an active all-wheel drive system. With turn-in response also improved, the understeer effect experienced with fixed all-wheel drive is virtually eliminated, making the car feel more balanced overall.

Torque distribution varies according to the selected Drive Dynamics Mode. In Comfort and Bentley modes, the system will send up to 480 Nm of torque to the front axle to offer greater grip and driveability. In Sport, the system limits the available torque to the front axle to 280 Nm, maintaining a higher torque level at the rear for a more dynamic feel.

Electronic All-Wheel Steering is standard, and during low-speed manoeuvres, the system steers the rear wheels in the opposite direction to the front wheels. This has the effect of shortening the wheelbase, reducing the turning circle, increasing agility and making parking noticeably easier too. During high-speed manoeuvres, the system steers the rear wheels in the same direction as the front wheels, increasing stability and making overtaking and lane-changes more assured.

Needless to say, a Bentley cabin has a luxurious environment and for the Flying Spur Speed, there is a new unique colour way including the use of Dinamica to all of the occupant touch points. Bentley uses Dinamica Pure which, compared to regular Dinamica, is made from 73% recycled polyester. There are more Interior colour choices as well.

The dashboard is the same as the other Flying Speed versions but in the driver’s information panel, new performance infotainment graphics can be seen. These take inspiration from luxury chronographs. The luxury theme continues with front and rear seat comfort specification as standard.

The Bentley Bacalar by Mulliner was unveiled in March 2020, just as the COVID-19 pandemic was starting to sweep across the world. Though a model of significance, it was overshadowed by global affairs that included shutdowns of industries and businesses in many countries. Nevertheless, when introduced, it already found customers for all 12 units to be built.

This exceptionally rare car is appropriately named after Laguna Bacalar in Mexico’s Yucatan peninsula, a lake renowned for its breathtaking natural beauty, continuing Bentley’s strategy of naming cars after remarkable landmarks which started with Bentayga in 2015.

Pinnacle bespoke project
The Bacalar represents the first in a new series of pinnacle bespoke projects that have spearheaded a return to coachbuilding by Bentley Mulliner – the oldest coachbuilder in the world. Eight units have been delivered to customers, with four more to soon be finished. Once their work is finished, the Mulliner team to focus attention towards their next project, which the carmaker says will be revealed soon.

The Bacalar also launched a new Bentley Mulliner operation, part of a new strategy that will see the division offer three different portfolios: Classic, Collections and Coachbuilt.

6 months of work
With the level of handcraftsmanship, each car has taken around 6 months to complete. Needless to say, each one is unique in more than just the colour as each customer has chosen from a myriad of options and materials. For the Bacalar, Bentley Mulliner revived its specialism in providing rare coachbuilt cars to discerning customers.

A roofless Barchetta design with all-new and highly muscular coachwork, the Bacalar has a carbonfibre bodyshell. The car sits on unique 22-inch Tri-Finish wheels, with polished faces, dark grey satin spokes and accent highlights to complement the exterior.

2022 Bentley Mulliner Bacalar

“Designing a Bacalar is an exercise in imagination, with the material, colour and finish of practically every interior and exterior surface being bespoke. Regardless of  personal style, whether it be  specifying a bold Yellow Flame exterior paint synthesised with rice husk ash, or a more subtle Moss Green that reflects Bentley’s heritage, developing personalised artisan piping, or co-creating a unique fabric blend, the Bacalar has provided all of these opportunities,” said Maria Mulder, Head of Colour, Materials and Finishes.

6-litre 12-cylinder engine
The Bacalar is powered by an enhanced version of Bentley’s 6.0-litre, W12 TSI engine. Claimed to be the most advanced 12-cylinder engine in the world, it produces 659 ps/900 Nm. An advanced Active All-Wheel-Drive System varies the torque split between front and rear wheels. It allows the Bacalar to use rear-wheel drive as much as possible during normal driving for optimum efficiency and dynamic performance.

Uniquely designed details and features in the cabin emphasise the coachbuilt character of the car, with an almost infinite number of ways for the 12 customers to express their personal taste and commission a unique interior. From the use of precious inlays and unique finishes to the driver controls, to the 148,199 individual stitches needed to embroider the unique Bacalar quilt on each seat, owners will find details and components not seen before on a Bentley.

Displayed at Goodwood Festival of Speed
One of the finished Bacalars was shown off at this year’s Goodwood Festival of Speed in England where it was also handed over to its new owner. The car was finished in bespoke Sunset Orange, with customised tri-colour wheels and gloss black highlights providing a bold contrast to the vibrant exterior.

The centres of the headlamps were colour-matched to the Sunset Orange bodywork, either side of a set of gloss black grilles and surrounds. The bonnet vents provided a textural difference being finished in satin carbonfibre, as were the wing mirrors. Satin carbonfibre also gave additional definition to the ‘power humps’ behind the front seats – accented with Sunset Orange brightware – along with the side skirts and rear diffuser, complemented by exhaust finishers with gloss black outers and matte black inners.

The customer chose a white and black cabin with Mandarin Orange accents, creating a striking contemporary interior theme. A satin carbonfibre technical finish encapsulates the occupants, sweeping from one side of the cabin to the other, matching the exterior technical details harmoniously. Every panel and detail of the interior was specified to the customer, through careful combinations of leather and Alcantara in white, black and orange, gloss and satin metals in black, dark tint and bright chrome finishes, and the twin usage of both gloss and satin carbonfibre.

2022 Bentley Mulliner Bacalar

Mandarin Orange leather accentuates the form of the top roll, the centreline in the steering wheel and both the door release and gear lever. This continues with further stitching details to the rear of the seats within the oval perforated Beluga piping and hand cross stitching along the door following the styling line around to the centre console.

Other fine details include the analogue clock faces of the Bentley Rotating Display provide a splash of contrast in Bacalar Blue. The carpets feature a ‘diamond carved’ pattern, with binding and stitching in Mandarin Orange, while the split line between satin carbonfibre and gloss black in the luggage area – usually unseen and hidden by luggage – was specified to be in satin dark tint.

For each customer, personalising the Bacalar was ‘a voyage of discovery’, and this too applies to other models which are configurable in literally billions of ways. The process of designing a Mulliner goes even further – with infinite combinations of materials, colours and finishes. The only limitations are vehicle construction laws and the imagination of the customer… the cost is unlikely to be a concern.

Building on a long tradition of Speed models that was born with the Continental GT in 2007, the Bentayga Speed maintains the performance credentials proven by its predecessor, which claimed the production SUV record at the gruelling Pikes Peak International Hill Climb in 2018.

The latest Bentayga Speed – the fastest SUV in the world – is now available in Malaysia, joining the other Bentley models offered by Bentley Kuala Lumpur. The handbuilt SUV has the vaunted W12 powertrain and many of the model’s luxurious features are standard, including the Mulliner Driving Specification.

Power, performance and agility
The new Bentayga Speed utilises the 6.0-litre W12 twin-turbocharged engine that delivers peak power of 635 ps/900 Nm, the full amount of torque generated from 1500 rpm and available to 5000 rpm. It gives the SUV a claimed maximum speed of 306 km/h, while the 0 – 100 km/h sprint can be done in 3.9 seconds.

2021 Bentayga Speed
The 6-litre W12 engine accounts for 10% of the time taken to build a Bentayga Speed.

2021 Bentayga Speed

While pursuing high performance, Bentley’s engineers have not forgotten the need to use fuel efficiently and also keep exhaust emissions down. To achieve this, the engine control unit can deactivate one complete bank of six cylinders as required. Switching between A and B Bank using information from the inlet and exhaust sensor, minimises cylinder and catalytic convertor cool-down and avoids spikes in exhaust emissions. This not only benefits CO2 emissions but also enables significant economy gains under part-throttle cruising conditions.

Four Drive Dynamics modes are available for the driver to use according to personal preference or conditions. Uniquely in the Speed, the Sport mode has been recalibrated to enhance response from the W12 engine and the 8-speed automatic transmission, together with the air suspension system and Bentley Dynamic Ride.

2021 Bentayga Speed

The Bentley Dynamic Ride is the world’s first electric active roll control technology that utilises a 48V system. This system instantly counteracts lateral rolling forces when cornering and ensures maximum tyre contact. Recalibration of Bentley’s Torque Vectoring by Brake system has made Bentayga Speed even more responsive.

The Bentayga Speed’s optional carbon ceramic brakes are the largest and most powerful brakes available from Bentley, with a maximum braking torque of 6,000 Nm and engineered to withstand temperatures up to 1,000 °C. They also provide a weight saving of more than 20 kgs over iron brakes.

2020 Bentley Bentayga Speed

Purposeful exterior
To complement the elevated levels of performance, the Bentayga Speed sports a purposeful exterior look. Dark-tint headlights, body-coloured side skirts, unique front and rear bumpers and a striking, elongated tailgate spoiler characterise the performance credentials. At the rear, the exhaust finishers are now the oval design that signifies a W12 powertrain.

2021 Bentayga Speed

2021 Bentayga Speed

Customers can choose from 17 standard paint colours, supplemented by a further 47 hues in the Extended and Mulliner ranges… with an additional 24 duo-tone options. If the customer still cannot find something appealing from these 88 choices, Bentley can have the bodywork colour-matched to any sample they provide. This exceptional range is complemented by a palette of 15 hide colours, 6 colour splits and 8 veneers with 2 technical finishes.

Dramatic design theme within
Inside, the Bentayga Speed has a dramatic design theme that balances luxury and performance. The unique Speed colour split is achieved through the use of dark colours enhanced by primary hide accents running throughout the seats and interior trim. Elegantly crafted ‘swooshes’ of contrast leather swipe around the doors, along the edges of the seat cushions and backrest bolsters, and on the lower console.

2021 Bentayga Speed

2021 Bentayga Speed

‘Speed’ seat embroidery on the backrest of all the seats is included as standard, and as a no-cost option, customers can choose to replace the ‘Speed’ embroidery with that of the Bentley logo.

A new contrast stitching design through the diamond quilting of the Mulliner Driving Specification (included as standard) is unique to Speed, with each of the stitch lines running through the quilting being split – one to match the leather, the other in the contrast colour.

2021 Bentayga Speed

There is also the option of the Black Specification, a striking package that replaces all exterior chrome work, bright detailing and some elements of the body with gloss black or carbonfibre versions. With this package, the standard roof spoiler is replaced with a curved carbonfibre version.

50% of sales tax exempted
The Bentayga Speed is priced from RM1,062,000 (excluding all taxes and insurance). With the recent announcement that the exemption of sales tax will continue till the end of 2021, there will be considerable savings with half of the applicable sales tax removed.

2021 Bentayga Speed

For now, viewing the Bentley Speed won’t be possible as the Bentley Kuala Lumpur showroom is closed during the FMCO period from June 1 – June 14, 2021.

How Bentley ensures the highest quality for its cars

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Bentley declares the new Continental GT Speed Coupe and Convertible are the most dynamic road-going cars ever made by the company in its 102-year history. The superlative driving dynamics have not been achieved with any compromise to comfort or luxury, thanks to a combination of 4 chassis technologies.

The biggest brakes in the world
The first is the new carbon ceramic braking system with the largest brakes installed in any production car. Measuring 440 mm in diameter for the front discs, this latest generation of carbon-ceramic disc has been specially formulated to provide class-leading braking performance with copper-free brake friction material for reduced environmental impact.

The new ceramic brake system offers weight-saving of 33 kgs compared to the iron braking system, and most importantly, this is unsprung weight which lowers inertia and gives the car more responsive handling.

The ceramic brake has been extensively tested around the world including at the Nurburgring Nordschleife where it set levels of braking performance never before achieved by a Bentley. In objective tests, the ceramic brake has proven itself to be exceptionally fade resistant – after 10 consecutive applications from 80 mph (about 130 km/h), the stopping distance only increased by 1.1 metres, to just 61.1 metres.

Electronic All-Wheel Steering
A new Electronic All-Wheel Steering system enhances the dynamic nature of the car in each of the driving modes. This is even more apparent in SPORT mode, as the steering combines with Bentley Dynamic Ride and the electronic limited slip differential for a level of agility unlike any other Bentley road car, utilising up to 4° of steering lock on the rear wheels.

At low and medium speeds, the GT Speed’s rear wheels are steered in the opposite direction to the front wheels to aid a rapid change of direction, noticeably increasing the feeling of nimbleness. The steering feels sharper and with a quicker ratio, and a commensurate increase in steering feel provides even more driver confidence.

At high speeds, the rear wheels steer in the same direction as the front, to improve stability. The system is significantly more active on the GT Speed than it is on the Flying Spur, where its primary purpose is a reduction in turning circle and enhanced high-speed stability.

Electronic Limited-slip Differential
For the first time in a Bentley, the latest generation of the Continental GT Speed introduces the use of an electronic limited slip differential (eLSD). Specifically tuned hand-in-hand with the traction control and active chassis systems, the eLSD provides increased lateral capacity, improved longitudinal stability, enhanced on-throttle adjustability and delivers better traction in adverse road conditions.

In all modes, this provides improved traction, creating a greater level of confidence for the driver and makes the car feel more stable at high speeds. Improved cornering dynamics and the extra grip provided allows the driver to exit any corner with an increased level of precision and confidence. In turn, maximum performance can be extracted from the available traction for the strongest  acceleration and composure from the apex. Torque distribution can vary across the powertrain according to the selected Drive Mode.

Advanced Electronic Stability Control
Finally, there is the advanced Electronic Stability Control (ESC) system which allows the driver to experience an even greater level of freedom before the GT Speed’s safety systems intervene to correct any anomalies. With the ESC system engaged, the car provides reassuring stability over uneven surfaces, abnormal cambers or in bad weather conditions. When switched to Dynamic mode, the ESC system allows an experienced driver to set and alter the cornering stance of the car at his discretion.

With the ESC switched off, the mechanical grip and inherent balance of the GT Speed comes to the fore, allowing a driver-focused experience previously only seen in Bentley’s racing machines. After utilising strong turn-in performance, thanks to the All-Wheel Steering and eLSD, the driver can choose to balance throttle and steering to deliver effortless, progressive yaw angles.

The Convertible (above), which made its debut last month, is the most driver-focused convertible of the Continental GT range and uses a revised version of renowned 6-litre W12 TSI engine which delivers 659 ps/900 Nm. It is fitted with a tailored, ‘Z-fold’ roof that can be deployed or stowed in just 19 seconds, transforming it from a luxurious coupe to an open-top Grand Tourer at the touch of a button.

FEATURE – The German engine that was born on a Japanese bullet-train

The most common engine layout is the in-line arrangement with the cylinders next to each other in a row. Many people would also be familiar with the vee layout, and Subaru owners would know their engine has a horizontally-opposed arrangement of cylinders. But most motorists would not be familiar with the ‘W’ which is prominently featured in Bugatti and Bentley models.

The initial W engine was conceived in 1997 in an unlikely place far from Germany – a Shinkansen bullet-train running between Tokyo and Nagoya in Japan. Then-Volkswagen CEO, Ferdinand Piech, had been having a conversation with Karl-Heinz Neumann, then head of powertrain development at Volkswagen, and sketched out an idea on an envelope on the fold-out table behind each train seat.

The sketch by Ferdinand Piech on the back of an envelope which gave birth to the W engine.

The idea had been in his head for some time and was something like a modular concept. The 6-cylinder VR6 engine was in wide use by Volkswagen by the mid-1990s; its uniquely offset cylinder banks made it compact enough to fit transversely even in small cars like the Golf. By marrying two of the relatively narrow engines in a further vee, a compact 12-cylinder could be made. The offset cylinders of the merged VR6 engines formed a ‘W’.

But what also emerged during the train ride was even more emblematic of the person who drew it: a massive 18-cylinder engine comprising three VR6 engines, configured in a tilted double-W shape. Springing from the back-of-the-envelope sketch into the real world, the W18 was a naturally aspirated 555 bhp, 6.25-litre powerhouse.

Piech was spearheading a growth movement as CEO of Volkswagen AG in the 1990s. As part of that movement, he was seeking a high-end, luxury brand to bring into the fold. Enter Bugatti which Piech’s son had recently insisted his father purchase a model of a Bugatti Type 57SC Atlantic for him, so the company was on his mind… and it also happened to be for sale. “An amusing stroke of fate,” he would write later in his autobiography.

In 1998. Volkswagen acquired the French car company which had been founded 89 years earlier. Piech immediately set about his goal of restoring Bugatti’s standing as producer of elite, state-of-the-art cars, and the new W18 engine found just the right place to make its debut.

With the aid of automotive designer Giorgetto Giugiaro of Italdesign, the Bugatti EB 118 design prototype was developed within a few short months. With its W18 engine mounted up front, the EB 118 debuted at the 1998 Paris Motor Show. Other concepts followed and by 2000, Piech announced that Bugatti would be launching a car that would be ‘the most exciting, innovative, and unprecedented of all time’. It would have 1,000 metric horsepower, break 250 miles per hour (400 km/h), and accelerate from 0 – 100 km/h in less than 3 seconds.

Bugatti Veyron showcased the production W engine to the world.

The Veyron, as the supercar would be known, would need to go through some revisions and refinement on the way to becoming a production model. The most dramatic of these was to its engine; a 2001 concept model, the EB 16:4 Veyron, had a W16 engine—essentially, two V8s joined at a 90-degree angle. Thanks to the W16 cylinder banks being separated at a 15-degree angle, the engine was compact enough to allow for the use of 4 turbochargers (the ‘4’ in ‘16:4’). The stats for the production Veyron were as staggering as promised: 8 litres, quad-turbocharged W16 engine with 987 bhp and 1,250 Nm of torque, 0 – 100 km/h in less than 3 seconds, and a top speed of more than 400 km/h. Succeeding Veyron models would eclipse even those numbers.

W12 engine in the Bentley Continental GT (above) and Audi A8 (below).

Of course, the W18 and W16 engines weren’t the only Volkswagen efforts to bring W engines to the road. Back in 1997, as Piech was sketching out what would become the W18, he and Giugiaro were also talking about a concept that Piech hoped would become a Volkswagen supercar, featuring a W12 engine. The W12 Syncro debuted the W engine to the world at the 1997 Tokyo Motor Show, with a W12 Roadster appearing at the 1998 Geneva Motor Show.

The best known W12 concept, however, was the Nardo. Revealed in 2001, the W12 Nardo had a 6-speed manual transmission that sent the 591 bhp from the 6-litre W12 engine to the rear wheels. However, this Volkswagen supercar never materialized in production form although the W engines did appear in some models.

2001 Volkswagen Nardo prototype with W12 engine.

2002 Volkswagen W8 Passat
The rare Volkswagen Passat with a W8 engine which was sold in the early 2000s.

From 2001 to 2004, a W8 engine was available as an option in the Passat and this particular variant is rare today, sought after by enthusiasts. The W12 saw production in the Phaeton and Touareg, as well as the Audi A8 and in a new generation of Bentley models from 2003 onwards. Spyker also bought a batch of W engines for use in some of its sportscars.

No replacement for displacement? Isuzu destroys that perception!

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