hi, a very simply (i hope to implement suggestion - "effect" can be seen in many racing games. easy way to uplift realistic feeling of realtime rendered cars. based on pre-rendered alpha textures from GI skylight, separate for car body and wheels (responsive to their turn angles), combined with currently used calculated drop shadow. of course ... fall off with distance to ground.
preview explainins GI shadow maps on XRT car.

recently ive noticed a liitle bug - when race starts and at moment is displayed list of connections (players names), "invisible" icons (ban, kick, ss...) become clickable (with invisible mouse pointer!) - important for mouse players like me... unwanted votes etc. when clicking lmb (throttle) when race starts.