Hi, i have a 2006 S4. In March, i was hit by another driver. I needed a new front bumper, fender, strut, rim, and radiator. The car needed to be re aligned also. Ever since i got the car back, it has been feeling slower. I am now losing in races that i should be winning. I mean it is still very very fast but it just seems a little off. Any ideas on what could be wrong? It may be irrelivant from the accident. Maybe something going wrong in the engine? any help would be apprecated greatly.