Couple of good ones the blue 106 and the green Seat are getting there photo-wise
What gear are you using? I'm sure there're some guides on the photog section about 'panning' - basically move the camera at the same speed as the car to get blurred background and car in focus with a shutter speed of 1/60-1/125 or just ramp up the shutter speed to get it all in focus (this can lead to the car looking like it's parked on the track though :rasp: )
Practice, practice, practice!