Continuity mistake: When Ledo is doing his dramatic arrival in his Audi, the front and rear wheels don't match. They match in later scenes. The rear wheels were obviously swapped to allow the car to slide the rear end out as it was entering the drive way. (00:35:00)
Continuity mistake: When Wolfgang jumps behind the car during the gunfight with Steiner and his gang, he crouches and keeps his head right beside the side mirror (which should probably classify this entry as "stupidity", too, since that offers zero protection.) In the following, wider shot, he's crouching well below the mirror, but then he's suddenly back where he started in the next one.
