Bought an '08 Lt Sedan (4a) in Sept 2011 with 58000 km's on it, like brand new, and fully equipped! Almost two years and 40000 km later I'm still impressed with my Cobalt.
The 2.2l engine is very quiet, yet performs flawlessly. I avg around 600km per tank, barely any road noise, sound system is good.
Reliable on the highway and good performance during Canadian Winters. The interior is plain, nothing fancy. The ''info'' center is great as you can scroll though Oil Life, Gas Mileage, Outdoor temp. etc... all in all, a great car if your looking for something non-fancy but will get you from A-B.
The spoiler is invaluable when it come's to parking and giving the car a sportier look. Radio controls on the steering wheel are very handy.
In exchange for a sunroof I have no interior lights for the passengers behind. The back seats have very limited space, even with the front seats brought forward. The brake pedal has a spongy feel to it, but still gets the job done. The front suspension is very stiff. Have a few concerns with the Cruise control, such as quick and sudden jerks when accelerating up hills, causing slight loss of traction. Upgrade the headlight stock bulbs after buying, as they are quite weak for night time driving.