After one of Jaime & Tim's stops during the race, he unhooks the chin strap on his helmet. When they start up again, he doesn't re-hook it. The next scene shows it connected again.
The alternate route has to be accessed by making a right-hand turn, yet the driver of Jaime's buggy turns the wheel to the left.
The last close-up shot of the buggy's gas-wetted tailpipe shows a shiny crudely-shaped oval patch of artificially-burnished (you can even see the individual rub-marks on the outer edge of the patch) metal on the previously plain pewter-colored pipe.
When the buggy loses the bolt from the tie-rod, it wobbles and veers toward a big hump in the terrain, yet when the buggy is shown flipping over, the hump is gone, with merely normal fairly level and flattish desert-terrain on all sides.
Jaime is shown to bionically lift the side of the Russians' overturned buggy, yet the close-up shots of the tailpipe and the trickle of leaking fuel do not change in angle as the car is turned back over.
In a shot of two racers from behind going down a slight slope, the second buggy briefly touches its brakes and its bright red brakes lights go on for a second, but the lead racer's brake lights stay on all the time, even though it never slows down (and in fact, it can be heard accelerating) as it zooms away into the distance.
With a loose tie-rod, the buggy's front wheels would be of unequal slant in relation to each other, yet in all the shots of the buggy rolling over, the wheels are properly aligned. Obviously a perfectly-outfitted buggy just being flipped over artificially.
The close-up view of the overturned buggy's leaking undercarriage/hot tailpipe does not change angle (nor does the background scenery move at all) as Jaime lifts the car up to free the trapped lady passenger.