The S20 engine installed in the "Z432" was a L-6 DOHC, four valve per cylinder engine breathing through Solex carburetors. It produced 160 horsepower and 18.0kg of torque. It had a maximum speed of 210km/h. The "Z432-R" was later introduced which had lighter body. It was equipped with FRP bucket seats with a four point safety harness, a rear spoiler, a FRP under diffuser, acrylic windows, a FRP hood, a 100 liter fuel tank, and an oil cooler. The air cleaner, a wind washer, heater, center console, a radio, a clock, and glove box lid were removed for weight savings. The body panels were also thinner at 0.6mm to save weight.

Saw a rocker cover for one of these on Yahoo tonight, $3500.