The Z102 entered production with a 2.5 (2,472 cc) litre engine, as was used in the prototypes, though later variants used a 2.8 L (2,816 cc), and 3.2 L (3,178 cc) litre DOHC desmodromic 32-valve V8 engines with multiple carburetors or an optional supercharger. Power ranged from to and was sent to the rear wheels through a five-speed gearbox with gear-driven camshafts. The base model Z-102 had a top speed of 120 mph (192 km/h). In supercharged trim the Z-102 could reach a top speed of , making it the world's fastest production car at that time.