Hennessey Venom F5 features a custom-built 6.6-liter twin-turbocharged V8 engine named "Fury," developed in-house by Hennessey, which produces an astounding 1,817 horsepower and is designed for extreme high-speed performance.By MrWalkr - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=122831556
Drivers could adjust the engine's power output with three settings (800 hp, 1,000 hp, and 1,244 hp), offering a range of performance levels depending on conditions and driver skill.By Supermac1961 from CHAFFORD HUNDRED, England - Hennessy Venom GT, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=18196525
It uniquely combined a heavily modified Lotus Elise/Exige chassis (retaining key components like the roof, doors, and windscreen) with an incredibly powerful American V8 engine – a twin-turbocharged GM LS7. This blend was a core part of its identityBy Axion23 - Hennessey Venom GT, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=38022888