Mudflap would be a great addon to the cars when racing in rallycross track. Just like the UF1000 which the roof can be removed. Maybe they could be put automatically on when dirt or hybrid tire are on. Anyway, i know rallycross isn't the most popular part of the game, but i think that's why we need some improvements. A WRC version of the RB4 would also be needed in my opinion, but that have already been mentionned. Also, i guess dirt wheels would also be great when using dirt tires. I can't wait to see my rb4 with "compomotive like" wheels and mudflaps! Ill post a quick render of the rb4 on compomotive with mudflap soon enough, only need to finish my wheel in 3dsmax.