Green’s Dictionary of Slang

1. (US) a Mercedes model 300Z.

1998

(con. 1986) G. Pelecanos Sweet Forever 7: They passed a black Z parked on the left.

2. a Datsun 280Z.

1990

M. McAlary Crack War (1991) 36: ‘Get into the fucking Z,’ Pappy screamed.

3. see zip (gun) n.