Originally Posted by Bob@BPS
I'm sorry I missed your question until now. What I have is a staggered setup. They are 18x9.5" ET30 front and 18x10.5" ET25 rear. There is plenty of clearance both front and rear for both the fenders and spokes. The barrel is tight on the 380mm kit, but my rep at Race Technologies says that the clearance is within their guidelines.
A square setup would be ideal to all rotation of the tires and maximizing tire use. The popular square Volk setup on the E46 M3 was 18x9.5" all around with 275/40-18s and a 10mm spacer in the rear. I think the offset was 30mm. Send me a PM if you'd like me to check on availability for you.
I can't imagine a better set-up for an e9x m3. Offsets and widths are basically perfect. I challenge anyone to come up with a better one.
What tires are mounted on these perfect wheels?