Is it always the same depending on which side of the car (i.e. right side swirls back and left side swirls forward)? That's pretty common for asymmetrical wheel design. In order for both sides to look the same (be mirror images) you would need a different wheel design for one side compared to the other. So it is cheaper to just make one wheel design and use it for all four wheels. This can be the case even on more expensive cars (e.g. Porsche's Sport Techno wheels).