What NON-Mopar car do you most regret selling?

I had a 72 Chevelle Malibu 350.
My parents bought it new for my mom to drive. It was given to me in 1983 with 36k miles on it, and quickly upgraded to factory duals and a holley carb. It was an oddball car, as it was built with a TH400 trans even though it had a 350/2bbl carb.