Quote Originally Posted by Jack4688` View Post
Because the rules state a minimum length the car used is as small as possible, generally speaking. So that makes it detrimental to use a Focus, for example, as it is a bigger car than the Fiesta. But nothing in the rules states that it isn't allowed
well before 2011, World rally cars also had to apply to the weight restriction of no more than 1230Kg and both the C4 & the Focus didn't seem to have a problem.