I have a very steep driveway that will scrape the front plastic a bit - foresee any problems?
it will continue to wear and at some point it won't anymore depending on how much it rubs. A little of a lot. Maybe have the driveway slope adjusted?
If you went up a tire size the scrapping might stop but there is not a lot of room in the wheel wells for larger tires so check clearances before changing tire sizes.
That's a surprise, eh, given the CT's already too-tall architecture. If what's on it are 225/5517 try 225/60/17 (from 2010-2014 OBs) to grab a half inch. Stay with H or V-rated to prevent soft sidewall squish of S or T tires negating your purpose! If OE is already 60 series then I'd say you'd have to start over with 18" wheels as 65 series truck tires on your CT will seriously screw up its reasonable handling. Avoid going wider to prevent fender rub up front too.
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