Like most of the reviews, my G6 was bought new. It rattles, shakes so bad that I am afraid to drive it. Sun roof leaks and rattles. The interior design is very cheap. I also bought a new Grand Prix two months later, big difference. My lease expires next month and I am sure I will get boned my GMAC with them having to fix all of the broken crap that should have never failed in the first place. What a cheap piece of junk.