1992 sunburst Miata. Sold it about 4 years ago w/ 65,000.
Was embarrassing, yet fun to drive.
I'm on my third Miata. Bought a new red NA in 1989 and sold it about 6 years later. My wife got tired of me saying "wish I still had mine" every time a Miata drove past, so she bought me a used 1993 black and tan NA for my 40th birthday. That one got traded in on a new 2015 white NC Club for my 50th. Miatas are easy to work on, fun to drive, and damn near bullet proof. Best small 2 seater ragtop ever made.
Back on topic, the car I really regret selling was a 1987 MB 190E 2.3-16. That was a blast to drive.
My dad bought it new in 87 and then sold it to me 10 years later. We put the 6 spoke MB Evolution wheels on it. Wouldn't have let it go if child #3 hadn't have come along.