Thanks for your help, But the wheels don't seem to spin, what you feel is as if the front wheels where a bit on the air, losing contact with the road because the car starts moving from side to side (very slightly though) and you need to hold the steering whell with both your hands (and this going just strainght, not in the middle of a bend). For instance if you decide to test the car in a small roundabout, in 2nd gear if you accelerate you cannot control very well the front wheels, they "go away" (I can do it better and faster with an old car). Sorry I do not know how to explain it bette