I am sooooo tempted right now...
My all-time favorite affordable car is currently on BaT...
1971 Intermeccanica Italia Coupe
photo credit: Bring a Trailer
I don't know what about it makes it one of my favorites--at any price; perhaps it was sitting in one when I was in high school. Only a few hundred made so they don't come up for sale often. It's probably the only affordable vintage car I'd consider as a replacement for my 356.
I know I'm just dreaming here...I'm out of room for another car. But more importantly I'm almost positive if I bought it I wouldn't survive the night--my wife would surely smother me in my sleep.