My son and I have found a 1990 M3 with a 1997 M3 (3.2l) engine dropped in. It is a credit union repo. The owner has no documentation for the newer engine (says it only has 92k on it).
The car is in pristine condition, brembo 13" brakes, SS exhaust, EVO wing and front apron, H&R suspension, short shifter.
The engine mod included the OBD1 conversion, transmission and rear end from the 97.
THe owner says he invested $25k in all the upgrades, and the CU is looking to get $20k.
Blue book for either year is around 10K.
Any opinions are welcome!