2007 e92 factory sport suspension, 20" OZ Racing wheels, fitment question

2007 e92, factory sport suspension



Currently running:



20x8.5, 34mm, 245/30r20



20x10, 35mm, 265/30r20



The rear rubs a bit when I'm at speed a go through a bad dip in the road. But it hasn't caused any serious issues, just a little noise. Been like this for about a year now....



Anyways, the time has come to replace/upgrade the rear tires. I will roll fenders if I have too!



What should I be looking at and what will fit? what will I have to roll the fenders for? what would look MINT? I currently don't have any spacers...



I was looking at 285/25/20's but I believe I will have to roll the fenders a bit? Also... there are very few tire options in that size, and they're expensive as all hell.



Can I go even wider? in a size that is more readily available and have more options? 295's or 305's seem to have quite a few more options available..



Car is daily driven quite aggressively year round 45,000km/year and sees 1-3 track days/season.



Thanks for the help guys... I can swap engines and replace clutches etc. but I'm useless when it comes to the wheel/tire fitment stuff..