Passenger stabilizer bar end link.
Love the car, runs great, easy on gas. Considering I do roughly minimum 120 kms a day, some days up to 200 a day, it's peppy, and I still pull on average 6,5 to 7,2 litres per 100 kms.
The AC doesn't seem to affect the power output.
Well designed car; the only thing I do not like about it, is getting the seat to fold forward to get to the back.
Can drive this car for hours on end and do not feel discomfort.
The dash is well laid out and the information center is a nice toy to have.
I had problems with the stabilizer end link, but I was told by a buddy of mine, who happens to be a Goodwrench mechanic, that it's a common problem with these cars. It got fixed and GM provided me with a nice rental for the time it was in the shop.
I do not regret getting rid of my Hyundai; all that did was send me to garage with expensive bills. GM is good with warranty as they honour it no questions asked.
I would recommend all my friends and family to get a Cobalt, and some already did, and they do not regret getting it.
I have a 2007 Cobalt LS and it's the best Chevy I've ever had. I'm glad I didn't believe all the hype that the import lovers pump out. It's a sensible car that's comfortable and dependable.