One of the major differences between the two is the type of engines they have. Most muscle cars have a V-8 or even a V-10 with a large displacement. These engines produce a large amount of horse power and create a lot of torque at the higher RPM (Revolutions Per Minute) range, but to fit these large engines, they need large cars to put them in. On the other hand, imports have a much smaller, inline 4 engine, and because it has a smaller engine, it can fit into a smaller car.
To make comparing easier, a 2004 Ford SVT (Special Vehicle Teams) Mustang Cobra and a 2000 Acura Integra Type R will be used as the comparison. The engine in the Mustang is a 4.601 liter, 280.8 cubic inch V-8 engine with 32 valves DOHC (Dual Over Head Cams), sequential electronic fuel injection, and an Eaton Generation IV roots-type supercharger, with a TTC