This is a pretty good start Trinox...
Absolutely love the second shot, it very much gives the impression that the car is flying around the corner, at high speed. The reason I preferr it to the third (which is pretty much the same angle), is that with the third shot, you can see the imperfections in the graphings on the front of the car, as it is not blurred.
Only one piece of advice: the car doesn't always have to be dead centre in the shot, as it doesn't always make for the best composed and most interesting photos.
Feel free to visit my gallery some time (link in my sig).