My mind always sees the subsequent cars with 4 headlights, V8s and manuals as the next version but it's not! So it's the C2 and C5 that are my favorites with the 5 edging out the 2 for top pick. I think there were a couple of versions of ZR1s (with a new one on the way). If you mean the C4 version I like it quite a bit but my favorites are still C5 followed by the C2 you showed pics of for a close 2nd place. A year ago I almost bought a mint yellow C5 with very low milage that was meticulously maintained because they were so gorgeous .... but where would I put it? My whole car history would have been different if I had kept certain dwellings that I sold!