What NON-Mopar car do you most regret selling?

1979 AMX. Factory 304 4speed. Loaded with everything: AC, sunroof, Twin Grip, factory AM/FM/CB... Slapped a mildly warmed over 401 out of a Matador station wagon into it... Scary amounts of fun in such a small car. The thing ate 5.0 Mustangs like they were Skittles, and cornered well for the day. Then the second kid came.
Just like this one:
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