I grew up when used muscle cars were still affordable for a kid in HS. I am in the 2 doors are the only real cool cars camp, but do appreciate some of the 4 door older cars. Especially hardtop versions. In my youth, 4 door cars were generally donors. I think what has changed is that 4 door cars are much more accepted now as normal driver cars. Just look at most auto lots, the std family car is a 4 door sedan now. Of course for older cars, the affordability factor has made 4 doors more acceptable as well.