Declasse
The Impaler SZ is a Declasse muscle car returning from earlier GTA games. Rockstar first showed it in an official screenshot (Grassrivers 02).
Buccaneer
The Buccaneer is an Albany muscle car returning from earlier GTA games.
Buccaneer Custom
The Buccaneer Custom is an Albany muscle car returning from earlier GTA games.
Buffalo STX
First shown: Trailer 1 (1:00)
Chino
The Chino is a Vapid muscle car returning from earlier GTA games.