Z4 Tire Rotation?

I recently bought a used 2003 Z4 and was wondering about tire rotation when the fronts are 225/40 R18, and the rears are 255/35 R18. The manual shows fronts to rear, and rears to front.

You can't rotate tires on a vehicle with offset sizes.

Correction, you CAN...you just sure as heck do not want too.

About the only thing you can do is spring for two more wheels/tires that match the front so you can rotate.

You have the sport package and optional 18inch rims. You don't rotate those. The rims in the rear are wider than the front. These are staggered setup and not a square.

Thats what sucks, i only have the regular non sports model.. extra features, extra cost..

I don't rotate tires even with a square setup. I have had more trouble when rotating than not.

Can't rotate... only 'switch' left front with right front, and left rear with right rear.

But only if the tires are non-directional. If directional, you can only swap left to right with remounting them.

And if asymmetrical and directional, you can't do squat with them.