Given the right car, I think they could probably look pretty good. Although i would never spend money on different tails, because I LOVE the stockers....these arent THAT bad. Those are probbaly the 2nd best looking aftermarket tails IMO. 1st are a little different...local stang used to have them and they looked pretty darn good.
now looking at them you would thing EWWW. But when actually installed and at NIGHT they looked AMAZING and truely unique. Didnt get a good look at them installed durring the day.
So like I said, those lights may not look the best just looking at them...or on the white car, but that doesnt mean it wont look good with another colour. Try it out man, thats how we discover new things that look good.