I just received my Tokina 12-24 and it is very wide. Haven't really had a chance to play around yet but this shot was taken less than 2 ft away from the car.
Depending on the camera you have, 12mm is pretty wide. In fact, if I am not wrong, it's considered "ultra wide" This lens looks pretty good though I can see a worrying degree of CA on the left edge of the lens.