Considering buying my mom's car from her. 2006 G6 GT convertible. 93k miles, she said "figure out what its worth and get back to me", so i figured id come here. interior is 8/10, exterior 6-7/10 (a few small knicks on the doors from *******s parking too close, and some running in the paint on the rear bumper. someone scraped the corner in a parking lot, body work was free from a professional friend who just did a sloppy job). I've never known it to have a problem, and my mom is the only owner. No top-malfunctions as far as her memory goes. There is a small exhaust leak, just causes it to make a blowing sound when rapidly accelerating. What should I come back with? Side note- I plan on making fun mods here and there, but nothing extensive planned. Probably chassis braces and a new exhaust right off, cold air intake later then whatever. At most I see it being something I take to the local track for fun. Thanks for the help.