I notice the other day that the Model S wheels are really tucked-away inside the wheel wells. Presumably for aerodynamics, but it also looks good. If you look at the space between the outside of the tires and the inside wheel well, the clearance is very small. I would bet that this was a challenging thing to do. Here's a couple of pictures comparing the Models S to a Toyota Camry. Has anyone ever seen a car with wheels tucked-away like this before? I haven't.