Pembuat kereta Czech, Praga, telah melangkah dari konsep ke realiti dengan memulakan pengeluaran untuk hypercar mereka, Bohema. Diperkenalkan pada tahun 2022, kereta pemandu jalan yang sah ini direka untuk memberikan pengalaman mendebarkan dengan enjin yang kuat dan pembinaan ringan.
Di tengah-tengah Bohema adalah enjin V6 3.8 liter pinjaman dari Nissan GT-R, yang dilengkapi dengan sistem sump kering dan turbocharger yang dinaik taraf. Enjin ini menghasilkan kuasa mengagumkan sebanyak 700hp dan tork sebanyak 724Nm. Kuasa dihantar ke roda belakang melalui transmisi manual enam kelajuan.
Menitikberatkan prestasi ringan, pembinaan karbon fiber Bohema menjadikannya berat di bawah 1,000kg, dengan matlamat membuatnya menjadi sebuah daya yang tangguh di trek lumba.
Program ujian Praga telah membawa Bohema ke trek lumba terkenal, termasuk Spa-Francorchamps, Red Bull Ring, dan Nurburgring. Maklum balas daripada pemandu profesional seperti bintang F1 dan IndyCar Romain Grosjean dan bekas Stig Ben Collins telah menyumbang kepada pembangunannya.
Dijual pada harga €1.36 juta (RM6,974,587), Bohema menyasarkan pengumpul hypercar yang mencari gabungan kuasa, prestasi, dan keunikan. Dibuat secara tangan di kilang Praga di Republik Czech, penghantaran dijadualkan bermula pada separuh pertama tahun ini. Walaupun dengan jangkaan pengeluaran selama empat tahun, Praga merancang untuk mengekalkan keunikan dengan menghadkan bilangan unit yang dihasilkan. Bohema mencerminkan komitmen Praga untuk memberikan pengalaman pemanduan yang tiada tandingan kepada kumpulan peminat hypercar.
Praga, the renowned Czech automaker, has transitioned from concept to reality as it begins the production phase for its high-performance hypercar, the Bohema. First unveiled in 2022, this road-legal driver’s car is set to deliver an exhilarating experience with its powerful engine and lightweight construction.
The heart of the Bohema is a potent 3.8-litre V6 engine borrowed from the Nissan GT-R, featuring a dry sump system and upgraded turbochargers. This powerhouse generates an impressive 700hp and 724Nm of torque, promising an adrenaline-packed ride for enthusiasts. Power is sent to the rear wheels through a six-speed manual transmission.
Designed with a focus on lightweight performance, the Bohema’s carbon fibre construction keeps its weight below 1,000kg. This emphasis on minimising weight is aimed at making the hypercar a formidable force on the racetrack.
Praga’s rigorous testing program has taken the Bohema to renowned racetracks, including Spa-Francorchamps, the Red Bull Ring, and the Nurburgring. Professional drivers like F1 and IndyCar star Romain Grosjean and former Stig Ben Collins have provided valuable feedback during these tests.
With a price tag of €1.36 million (RM6,974,587), the Bohema caters to hypercar collectors seeking a combination of power, performance, and exclusivity. Handcrafted at Praga’s Czech Republic factory, the company plans to commence deliveries in the first half of the year. Although production will span four years, Praga intends to maintain exclusivity by limiting the number of units produced. The Bohema represents Praga’s commitment to delivering an unparalleled driving experience to a select group of passionate automotive enthusiasts.
With the pace of electrification accelerating, especially in Europe, it’s time for Ferrari to get more serious. Thus far, the company has already put a few hybrid models into the market – like the LaFerrari and SF90 Stradale – and with the new 296 GTB, the latest evolution of their mid-rear-engined two-seater Berlinetta gets a new hybrid engine as well.
All-new hybrid V6 engine
The engine is new – neither 8-cylinder nor 12-cylinder – but a 663 cv (553 ps) 120° V6 coupled with an electric motor that adds 122 kW (166 ps), giving a total system output of 830 ps. This is the first 6-cylinder engine installed on a Ferrari road car although the brand has had V6 engines going as far back as 1957 but only for its racing cars. The very first Ferrari V6 has 65° architecture and debuted on the 1500 cc Dino 156 F2 single-seater. V6 hybrid architecture has been used on all Formula 1 single-seaters since 2014.
In the case of the 296 GTB (the badge number is composed of its total displacement and the engine cylinders), the hybrid system is a plug-in (PHEV) type which can provide up to 25 kms of running on just electric power, it is claimed.
This new V6 has been designed and engineered from a clean sheet by Ferrari’s engineers specifically for this car and is the first Ferrari to feature the IHI turbos installed inside the vee. Aside from bringing significant advantages in terms of packaging, lowering the centre of gravity and reducing engine mass, this particular architecture is said to help deliver extremely high levels of power.
The result is that the new Ferrari V6, which has an 8-speed DCT, has set a new specific power output record for a production car and the maximum power output puts it at the top of the rear-wheel drive sportscar segment.
Sound-wise, the 296 GTB rewrites the rulebook by harmoniously combining two characteristics that are normally diametrically opposed: the force of the turbos and the harmony of the high-frequency notes of a naturally-aspirated V12. Even at low revs, inside the cabin, the soundtrack features the pure V12 orders of harmonics which then, at higher revs, guarantee that typical high-frequency treble.
Aerodynamic innovations
Apart from the powertrain innovation, the 296 GTB also has aerodynamic innovations that include, for the first time, an active device is being used not to manage drag but to generate extra downforce. The LaFerrari-inspired active spoiler integrated into the rear bumper allows the 296 GTB to generate a high level of rear downforce when required – up to 360 kgs at 250 km/h in high- downforce configuration with the Assetto Fiorano package.
The brake cooling system was developed around the Aero calipers introduced on the SF90 Stradale with ventilation ducts integrated into their castings. This brake cooling concept requires a dedicated duct to correctly channel cool air coming in through the air intakes on the front bumper through the the wheelarches. In the case of the 296 GTB, the intake has been integrated into the headlight design.
The styling of the tail shows a break from traditional Ferrari coupe design by adopting an architecture that creates a spider-like discontinuity between roof and rear engine cover. This choice makes the 296 GTB both unique and instantly recognisable and, from an aerodynamic perspective, led to the addition of a new wing profile on the roof which extends into two side fins that hug the edges of the rear engine cover.
Cabin evolved from SF90 Stradale
The 296 GTB’s cabin area was developed around the new concept of an entirely digital interface which was first adopted by the SF90 Stradale. With the SF90 Stradale, the interior designers wanted to highlight the presence of the advanced technology and underscore a clear break with the past; in the case of the 296 GTB, the idea was to clothe that technology in a sophisticated way. The result is a pure, minimalistic connotation characterised by a powerful elegance that, on an aesthetic level, perfectly mirrors the design of the exterior.
The 296 GTB’s cabin raises the concept of the formal purity of the functional elements to new heights. From a formal perspective, when the engine is off, the onboard instruments go black, enhancing the minimalist look of the cabin. Exclusive Italian leather trim to the seats and trim is further enhanced by the noble technical materials used on the functional components. The sculptural door panels are seamless continuations of the dashboard in terms of both materials and colour.
Assetto Fiorano package
For customers who want to experience the full performance of the car, the Assetto Fiorano package is available and provides significant weight reduction and aero content. It includes special GT racing-derived adjustable Multimatic shock absorbers, high downforce carbonfibre appendages on the front bumper, a Lexan rear screen, and more extensive use of lightweight materials such as carbonfibre for both cabin and exterior.
The Assetto Fiorano package involves much more than simply replacing elements. Some components require the standard basic structure to be redesigned, including the door panel, resulting in an overall weight-saving of 12+ kgs.
Aston Martin has revealed further details of its in-house designed V6 engine, created initially for deployment in a new range of mid-engined sportscars, starting with the Valhalla from 2022. Codenamed TM01 – celebrating Aston Martin’s illustrious engineer of the 1950s and 1960s, Tadek Marek – the engine has already undergone a series of extensive testing sessions on the dyno, as the team make progress towards creating the luxury British brand’s first in-house designed engine since 1968.
Confirmed today as a 3.0-litre turbocharged V6, the full powertrain will be electrified – an aspect that has been key to the engine’s development from day one. In parallel to the tests shown today, Aston Martin is developing a new range of hybrid systems that will ensure that the complete unit will become the most powerful in the Aston Martin range when on sale. The final power and torque figures for each application of this powertrain will be determined by the desired characteristics of each product it serves and confirmed at the time of launch.
Following the Valkyrie – the brand’s first mid-engined hypercar – many key learnings have been directly applied to this project. As a result, the decision to develop the engine with a ‘hot V’ structure was clear from the start, with the configuration allowing for this compact engine to weigh less than 200 kgs.
Aston Martin Valhalla
Higher engine speeds, in combination with the benefits of electrification, will offer the performance characteristics of a mid-engined sportscar on an extreme level. Naturally, the engine will be positioned directly behind the driver’s cabin and equipped with a dry sump system to guarantee the lowest possible centre of gravity. The system will also deliver exceptional lubrication performance during on-limit, high-speed cornering. Despite the overt nature of this powertrain, the engine is designed to meet all future emission requirements for Euro7.
“This project has been a great challenge from the start. Putting a team together to deliver what is going to be the future power of Aston Martin has been an honour. From the very beginning, we have had the freedom to explore and innovate in a way that we have not been able to do so in a very long time. Most importantly, we wanted to create something that is befitting of the TM01 nameplate and create something that would have impressed our predecessor and pioneering engineer, Tadek Marek,” said Joerg Ross, Powertrain Chief Engineer.
The 2017 Nissan GT-R Track Edition will make its debut at the upcoming New York Motorshow which will take place from 14th to 23rd April. This track edition of Godzilla builds on the already successful platform to deliver even better driving dynamics.
Nissan’s latest edition to the GT-R range slots between the T (Touring) and R (Racing) editions of the namesake. It is said to offer higher levels of performance than the Premium version and incorporates a number of elements from the GT-R NISMO. That said,unlike the NISMO, its engine still retains the same horsepower as the Premium variant at 565bhp.
Other improvements to the car include additional adhesive bonding to the body, which improves body shell rigidity, the 4-wheel-drive system has been tuned to NISMO specifications and too top it all off, Nissan has reduced the weight and added additional roll stiffness as well as NISMO spec tyres.
Those aren’t the only elements that were carried over, the Track Edition also features NISMO front fenders, 20-inch NISMO forged aluminium-alloy wheels and a special dry carbon-fibre rear spoiler. As for the interior, it has a unique red and black colour combination and Recaro seats.
“The new GT-R Track Edition gives buyers a specialized model, one true to GT-R heritage and available only by special order,” said Michael Bunce, vice president, Product Planning, Nissan North America, Inc. “Building on the major upgrade to every GT-R for 2017, the Track Edition is an amazing package inside, outside and under the skin.”
Nissan says that the car will go on sale in the US towards the third quarter of this year but will only be available at GT-R certified Nissan dealerships in the country.
