A Ferrari Testarossa is powered by a 4.9-liter naturally aspirated flat-12 engine mounted longitudinally behind the driver. This engine produces 390 horsepower and 361 lb-ft of torque, allowing the Testarossa to reach a top speed of over 180 mph. The engine is paired with a five-speed manual transmission and is capable of accelerating from 0-60 mph in just over 5 seconds.