12. BMW M3 E90 CRT
When E90 M3 debuted, enthusiasts raved about the glorious new V8 engine but complained about weight gain, that made the car feel less agile. BMW answered the criticism with a unique, costly, and highly limited model called M3 CRT. The “CRT” stands for “Carbon Racing Technology” and represents the M3 Sedan with a fully carbon body, seats, interior, and other pieces (via Motor1).
Although the effort to reduce weight was extensive, the result was just 70 kilograms less than the regular model, which was disappointing. However, BMW did install a 4.4-liter V8 engine from M3 GTS with 450 HP, which provides M3 CRT with very strong performance. Produced in just 67 examples in 2011, today, you’ll need around $300,000 to buy one, and we believe this car definitely isn’t worth the asking price.