23. Vector W8
The legendary Vector W8 is a wedge shaped, V8 powered monster presented in 1990. It was an ambitious project by the Vector Aeromotive Corporation. Under the engine cover was a typical American powerhouse in form of a Chevrolet small block V8. They paired it up with twin turbochargers to produce 625 HP, which was an impressive figure. The company claimed that at full boost, the 6.0-liter twin turbo engine was capable of 1200 HP.