Formula One's managing director of motorsports Ross Brawn says he found it "personally offensive" when Ferrari's chairman Sergio Marchionne accused him of dumbing down the sport.
In his current role in F1's management, Brawn is responsible for coming up with a new direction for the sport once the existing commercial agreements expire after 2020. He has proposed a new set of simplified engine regulations and a budget cap to help contain costs and make the sport more competitive, but has met resistance from Ferrari and Mercedes.
Ferrari threatened to quit over the winter if the proposed engine regulations are introduced and Marchionne accused Brawn of taking F1 in "a direction that is not in the DNA of the sport".