I'm not so familiar with the Mini Challenge, but it looks like in 2015 there is three different classes:
http://www.minichallenge.co.uk/the-classes.html
Cooper, JCW and F56. Please could someone tell what level the season budgets are in the cheapest class and how about the arrive and drive type of renting for one race weekend and practice day before that? How would you compare theMini challenge costs to Abarth 500 Trofeo costs? Are there some cheaper classes available with new cars than these two?