Fun, but has some bugs, like red text on red BG for menu, and after grabbing sabotage contract, car still says "grab contract first", however lets me hit E and proceed. On low end machines, framerate drops and turns delta-T for mouselook unplayable due to some rounding errors (almost impossible to aim at something), but that's notorious in windows internal mouse speed functions. Maybe better calculate real mouse speed based on position and frame time.
Physics may also slow down things.
Would look better with baked lightmaps.