Last month, Hennessey Performance Engineering released a video showing off its new twin-turbo 2020 Corvette C8, which is seemingly the first-ever eighth-generation Corvette to be equipped with two turbochargers.
Unfortunately for Hennessey, the General Motors Global B digital architecture that serves as the central nervous system for the mid-engine sports car was engineered specifically for improved cybersecurity. That means the Texas-based tuning shop cannot crack the car’s ECU to change things like air and fuel flow, limiting the amount of power they are able to extract from it. However, the twin-turbo Vette is still rather powerful, with Hennessey claiming the development car is good for an impressive 643 horsepower.
The twin-turbo Corvette C8’s ECU may remain under lock and key for the time being, but that hasn’t stopped Hennessey from taking the development vehicle out for a drive. In a recently released video, shop owner John Hennessey is seen doing some wide-open-throttle pulls in the Sebring Orange-painted Corvette and explaining the company’s future plans for the vehicle.
After giving the car the full beans on the straightaway, John Hennessey concludes the car “feels every bit of 640 wheel (horsepower),” and says the car is making almost 200 horsepower more at the wheels than stock.
“This is an awesome car, these things are going to be so fast,” he says in the video. “Once we’re able to put a built motor and a tune and a little more boost, I mean on pump gas, I think we’ll be able to make 1,000 horsepower.”
Hennessey is confident its 1,000+ horsepower Corvette C8 upgrade package will enable the mid-engine sports car to clock in a high nine-second quarter-mile at around 140 mph. Not only that, Hennessey is also confident the car will remain a comfortable cruiser and road trip car even after it’s done with its upgrades. He says the car is much more comfortable than the McLaren 600LT he currently owns, though it’s worth noting the 600LT is a hardcore, track-focused version of the softer, more approachable McLaren 570S.
You can see Hennessey twin-turbo Corvette C8 development car in action in the video embedded below.