[Jack21]

If you're looking for originality, stick with your 15"s. The cornering, handling, braking, and traction sucks; but originality of your 40 year old tire technology is preserved.

If you're looking for performance, go with 17"ers. There is a reason that all the factory hot dogs do not come with 15" tires anymore. Once you switch, you'll never look back. Like night and day. And, you can drive it in the rain.