The best autox photos I've seen are taken from just inside or just outside the turn, and are sharp enough to show detail of the tire deformation and inside tires lifting a bit (or completely off the ground). A bonus is if you can see debris lifted from the track by the tires, making the picture seem more dynamic. Capturing the driver looking cool and not looking straight ahead is kind of neat too.
Also, in the first picture posted the concrete chunks behind the car (black fiesta with red stripe?) are completely distracting. A decent background helps a lot. If the background isn't cool, then depth of field needs to be reduced to blur it out.
Also, lots of people don't want their license plates showing so come up with some way to blur them out without just putting an ugly gray rectangle over the plate.
But that's just my opinion... In these pictures I'm not looking cool or anything, but you can see the body roll and track debris so its obvious the car is racing.