Hello and welcome!
With your E90, you can run with 235/35/19 and 265/30/19 tires if you're running at an offset such as ET35F and ET33R. Typically with a 19x8.5 and 19x9.5 setup, you would see a setup kind of like this:
19x8.5 Front | 19x9.5 Rear Wheel Size
ET35 Front | ET33 Rear Offset
235/35/19 Front | 265/30/19 Rear Tire Size
With that setup above, you will have an aggressive setup without any rubbing or fitment issues. Come by and check out our wide variety of wheels that we have available for sale on our site. :thumbsup: