roadmaster56

Hi, I'm thinking about going to a HIGHER profile tire. I cant get into my driveway without scraping the front bumper. Also I do not like the Bridgeston runflats at all, they feel like solid rubber tires. Can anyone tell me if I can fit 245x45x18 or 245x50x18 tires using the stock rims. Any rubbing problems? Also, does anyone have feedback on Michelin Pilot Sport tires? Any other tire suggestions? Thanks.