I've got a square setup on my 2000 BMW M5 running 275/35-18 with Pilot Super Sports. Fantastic street tires that do pretty well on the track. I wish I could fit those wheels on the Cuda but the pattern is wrong, but I do know the tire will fit with the right backspace on a stock rear end. I'm hoping to fit a wider tire in the back, as much for look as performance. The BMW is going down the road this spring to make room for the Cuda.