I was trying to answer the same question and i came up with Galant. Its a model but still a car.
:-)
HOW ABOUT GMC
the Mercedes G- class
General motors
gwm , gmc , gonow, a gizmo, gremlin, gran torino.
well there is a go cart
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Geranium
gothic
General Motors Corporation
Gio, Gallant, Grand Prix
edsel
Jaguar,
Hummer