8. SSC Ultimate Aero TT
The Ultimate Aero was designed to be the fastest and the most powerful supercar on the market, with engineering representing the perfect blend between racing technology and streetcar design. The first Ultimate Aero models used a 6.2-liter Corvette racing engine with almost 800 HP, which propelled this beast to 238 mph.

But a real treat was introduced in 2009 when the Ultimate Aero TT was released. It featured a turbocharged Corvette mill with 1200 HP and improved suspension, chassis, and aerodynamics. Soon after, the Aero TT broke the production car speed record achieving 256 mph, making it the fastest car in the world. With the price of close to $300.000, only 24 Aeros were built between 2006 and 2009.