Built from 1956-58 (ZA from 1955-56). The lowered body and Chassis were from the Wolseley 15/50, the engine and front suspension was from Austin and steering was Morris. They featured leather seats and polished wood door cappings. The ZB got more power from bigger carbys and now optional 2 tone paint. Chrome trim on the side of the ZB now just straight rather than dropping down to the bumper at the front.