Well for the exception of my tc6.1 worlds car my mini is the highest dollar car. Sad part is the TC only wins by maybe $100 and it was $400 out of the box. So the mini keeping it tcs legal is not cheap but to me is worth it. Plus honestly its less stressful and more fun to drive than the tc. It may have more to do with the drivers and their attitudes about the cars and class in general.
Jason