When I owned my white VW GTI, I actually went to a hobby shop and located a plastic kit of a GTI just so I could make one exactly like my car. The kit had the euro headlights/grille instead of the US one, so I scratchbuilt those parts. Painted the cloth inserts on the seats the same way as my car and everything. I really loved that car, I guess...

Haven't bothered to do the same with my Honda. Doesn't seem worth it...