Having finally managed to get a A4 T sport , it seems to have a problem when the engine is really pushed hard on accleration . There seems to be a power loss or fuel starvation when the engine hits around 4 to 5 thousand revs , it literally only lasts a fraction of a second and if I back off and then accelerate again it doesn't happen , until I get to the next gear. I don't intend to drive the car like a speed freak , but it's nice to have it there when you need it. Can anyone shed any light on what might be happening ? Other than that it's a seriously nice car to drive .