I'm one of the dummies. Can somebody give me the basics about racing on line with GT5? I'm a decent driver off line - or I'm learning to be one - I'm at lvl 23 right now. I'd like to try some friendly pick up races on line just to get the feel of it. So what's the best way for me to do it? Can I damage my cars or wear out my tires? Is that dependent on the race/track/event? Do you get credits you can use in the off line game? And do you lvl up in experience points? These are some of my questions.