Great shot! Tell me please how you managed to get that car into focus when they move at such high speeds? I'm horrible with moving subjects for photography!
Jacqui,
This technique is called panning. set your camera at f 1/15 to 1/40 at Aperture priority depending on the speed of the car. after you focus on the car, you follow or pan the movement and shoot and continue to pan. It takes a lot of practice and varying the Aperture to get the right shot...hope this helps