23. BMW M3 GTR
Every M3 since the mid-80s until today is already a high-strung piece of German engineering ready for racing. However, in the extremely competitive world of motorsports, BMW needed a more efficient weapon. They wanted to go against those Porsches and Ferraris in the IMSA championship of the early 2000s. For that series, BMW prepared the E46 M3. But instead of the high revving 3.2-liter, six-cylinder engine, the M Performance division installed a special 4.4-liter V8. That’s what made the M3 unstoppable at the tracks.
Other teams in the race series cried foul since the V8 wasn’t a production item in the M3 range. As a result, BMW decided to create one of the craziest homologations specials ever made. It was the M3 GTR with 493 HP (600 HP) and full racing equipment and aero package. Interestingly, BMW built 10 cars, but never offered them for sale to the public. Apparently, all 10 are still in BMW ownership, even though there were interested buyers at the high price of $220,000 apiece.