Yes, the inward cant or tilt is intentional and normal on your Crossfire. I think it's 2 or 3 degrees, but I'd have to look it up again to be sure. You'll find this handling adjustment to be more common on sports cars. Yes it can cause the tires to wear a bit more on the edge, but generally not a lot. Chalk it up to a small piece of the cost of owning a sports car!