Do you know Ken Block ? Here is his car... But in Lego ! The first objective was to build a RC model. I had the idea to inculde a caster angle. In testing the first prototype, I have seen it slipped in end of curve. So I had the idea to improve this prototype. Finally, I did the Ken Block's Ford Fiesta (from 2011, the most beautiful for me). I made custom stickers for a better look. It can really do drifts. The steering is done by a servomotor. The driving is done by 2 L motors with a 3:1 ratio. (24t/24t/8t) The working is similar to that of a karting. There is an important caster angle. When the car is turning, thr rear interior wheel is upped. Thus there is less grip at the rear axle, and the car drifts. The chassis is very rigid to have a good performance. The body is easily removable. The video : I have made building instructions (pictures) : https://www.dropbox.... Block.pdf?dl=0