Some cars leave a paper trail; the G3 left a name and a place in Pontiac's list. What follows is what can be said with a source behind it.
Its place in the line
Nearby in the Pontiac catalogue sit the Pontiac 2+2 and the Pontiac 6.
The record
The open record for the G3 carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.