If you bought the car second hand, those curb rash could have came from the previous owner, or even the dealer if the it had been in their posession before you purchased it. I can't imagine anyone scraping up all four wheels and not remembering, there is a gut wrenching sound when I carelessly curbed on of my rear wheel. Trust me, if it was you would know.
Tires should be wider for sure. The most popular size being used is 265/35 & 305/30. This set up should provide enough meat to give your rims some protection.
Michelin and RE-11 are two of the top choices but pricey, especially in 19's. However, you cant go wrong with either one.
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