I need to replace the stock 215x55x17 Turanza's and want to get some more meat on the ground. I know this must have been discussed ad nauseum before, but I can't find it. I'm either going to just install some Michelin pilot sport A/S in 235x50x17, or get new wheels too. If I get new wheels, what is the widest rim that will comfortably fit before I introduce a lot of weirdness? I could also go to an 18" wheel. Has anyone had good experience going this route (larger wheel and wider tires)? If so, what is the max that will fit. Thanks