I've seen a lot of different techniques used to model cars. My curiosity is to know if it makes a difference if you model part by part (front fender, hood, door, etc.) and convert each piece to subd when you're done each piece. Or model the entire car in its polygone form, then extract each piece and begin converting to subd's.

Anybody else have any opinions based on what works for them best? Or maybe just personal preferences.