I've been doing some research online to try to find the perfect car. I loved my 2001 Grand Am more than anything so I decided to look for a G6. I've got it narrowed down to 2 of them locally, but need some opinions from everyone. One of them is GM Certified with 42,000 miles so I get the 12,000 mile/12month warranty on it (base model) or I can get a GT with 27,000 miles on it which would still have some factory warranty but isn't GM Certified. Both cars are the same year and same price. I can get the base model for $14,000 and the GT for 14,500. I really need some opinions on which one would be best. Also could someone tell me how the gas mileage compares between the two. I appreciate it greatly.