I bought my cobalt new and i now have 145,783 miles on it and it has never once let me down and stranded on the road. Not even so much as a dead battery, and yeah the battery i have in it is the one from the factory! The only work ive had done to it is ive had the electric power steering replaced from the recall as it just randomly stopped working while i was driving. But besides regular oil changes and maintence such as alignments and such ive never had one thing wrong and would reccomend it to anyone! And Ive worked at various car lots so Ive driven just about every car and id still reccomend this car over any other comperable car foreign or domestic. This has made me a chevy guy for life!