Hennessey expects the Venom F5 Roadster to surpass the company’s own ’world’s fastest convertible’ record - 265.6 mph - currently held by the Hennessey Venom GT Spyder. conspicuous is the hypercar’s new roofline. In contrast to the F5 Coupe, the F5 Roadster’s roof has been re-engineered with a removable panel crafted from rigid carbon fiber composites. The single-piece roof is fully insulated against the elements and lined with soft Alcantara upholstery. The weatherproof panel is secured with four quick-release bolts and a pair of high-strength latches to withstand the hypercar’s staggering acceleration capabilities and aerodynamic forces at extreme speed. The lightweight roof panel weighs a mere 18 lbs (8 kg), making removal and installation easy for one person.Hennessey on Thursday revealed the Venom F5 Roadster, a car that just might be the fastest convertible ever to enter production.Set to make its formal debut on Aug. 19 at The Quail, A Motorsports Gathering, one of the premier events of 2022 Monterey Car Week, the new Venom F5 Roadster is the open-top version of Hennessey’s Venom F5 hypercar unveiled two years ago, and there’s been no loss in performance with the removal of the roof, we’re told.The Venom F5 Roadster runs the same twin-turbo 6.6-liter V-8 as its coupe sibling, meaning a peak output of 1,542 hp on pump gas and 1,817 hp on E85. Peak torque is rated at 1,193 lb-ft. The mighty engine, nicknamed Fury, is mated to a 7-speed automated manual transmission and spins the rear wheels only.Except for the roof, and a few other small details, the F5 Roadster is an identical copy of the F5 coupe. With just a few updates made it even delivers the same chassis rigidity, strength, and stiffness as the coupe.The Roadster received a removable panel crafted from rigid carbon fiber composites. The roof is designed as a single-piece element and is lined with soft Alcantara upholstery. It weighs only 18 pounds (8 kilos) and it is very easy to install even by one person. The Roadster will come with a tempered glass engine viewing window which offers a very good view of the V-8. The glass can withstand aerodynamic forces exceeding 300 mph and temperatures beyond 1,000 degrees Fahrenheit (540 degrees Celsius).
Another unique feature of the Roadster is its wheels. The supercar rides on forged aluminum alloy wheels. As an option, you can also go for highly polished aluminum wheels - a process of hand polishing that takes weeks to complete.As with the coupe, any exterior and interior color combination can be specific to go with a carbon fiber chassis or exposed body panels.It’s here that Hennessey’s hypercar stands almost alone in the automotive universe – at least, that’s if the claims hold true. The Hennessey Venom F5 Roadster’s engine is the same 6.6-liter twin-turbocharged V8 as in the coupe that makes 1,817 hp at a crazy 8,000 rpm and 1,193 lb-ft of torque at 5,000 rpm. In F5 Mode, it’ll rev all the way to 8,500 rpm. The roadster’s power-to-weight ratio of 1.29 hp/kg is only slightly below the coupe’s 1.34 hp/kg.In the coupe, 0-62 mph is dispatched in only 2.6 seconds. 0-124 takes 4.7 and 0-186 (300 kph) is over in only 8.4 seconds. Hennessey hasn’t yet published these figures for the roadster but it shouldn’t be too far behind. The top speed for the rear mid-engined coupe is said to be greater than 311 mph, while the roadster can manage 300+ mph. This would surpass Hennessey’s own record for convertibles after the Venom GT Spyder reached 265.6 mph. With the roof panel removed, the top speed is lower, however, but this should still end up being the quickest drop-top in the world when a top-speed run can eventually be conducted and verified. The transmission is a single-clutch semi-automatic seven-speed unit and it directs power to the rear wheels exclusively.We’ve got due to this fact developed a hydrogen combustion engine that goals to match the ability and torque of present high-performance gasoline engines as an idea research,” mentioned Bevilacqua...Porsche selected its current twin-turbo 4.4-liter V8 gasoline engine. It isn’t an engine from Porsche’s present vary, as all V8 fashions just like the Cayenne and Panamera depend on a 4.0-liter twin-turbo V8 engine. As a substitute, this engine is a digital knowledge set, to which Porsche may simply make modifications wanted for the hydrogen combustion cycle. The digital 4.4 V8 runs a better compression ratio and a combustion cycle tailored to hydrogen, however, the largest drawback was turbocharging.“For clear combustion of hydrogen, the turbochargers must, on the one hand, present around twice as a lot of air mass as they do in gasoline engines. However, nonetheless, the decreased exhaust fuel temperatures lead to a scarcity of power for his or her propulsion on the exhaust aspect," explains Bevilacqua.Owners may choose to store the panel in a bespoke Merino wool travel bag or as a standalone work-of-art on a custom-made, sculptural pedestal - devised by Hennessey’s in-house design team to enhance the ownership experience. The roof pedestal, crafted in carbon fiber like the roof panel, mirrors design themes from the Venom F5 Roadster. Viewed from above, its ’blade legs’ trace the shape of the car’s rear decklid, while the side profile uses the hypercar’s bodyside air intake form for inspiration. In addition, the sharply angled, streamlined stand displays the ’Venom F5 Roadster’ script on the front face of the base in the same eight-microns thin aluminum as the car’s ’H’ nose badge. The Hennessey Venom F5 Roadster features a new tempered glass engine viewing window. This panel, in the middle of the rear engine cover, spotlights the massive ’Fury’ V8 engine in all its glory. Its engineering was no simple task - developed and certified for use in jet aircraft. The sizeable glass panel can withstand aerodynamic forces exceeding 300 mph and temperatures beyond 1,000 degrees Fahrenheit (540 degrees Celsius). The detail is extraordinary - the engine viewing window is encapsulated within a removable carbon fiber engine cover that features intricately-milled heat extraction holes that match those in the rear bumper. Additional heat extraction is achieved by dual aluminum air vents, four on each side of the glass panel, which match the vents behind each front wheel.
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