This car is a general piece of crap.
First, the most expensive problem is it keeps burning up tires like it's going out of style; they don't stay aligned and we have blown a few from balding.
The car drives like a bunch of snakes; very poor steering. I have heard numerous complaints here about a shaky steering column and must agree, the column shakes and rattles constantly.
Very loud inside the interior when driving on freeway. The plastic interior is starting to crack and break.
The only two good things I can say about this car is that it gets GREAT gas mileage (I can average about 34 mpg at 60 mph), and second, it has an integrated oil filter that makes changing the oil a snap.
You are complaining like you bought a luxury car. The cobalt is an econo car and its not as refined as a lexus or cadillac. You don't mention any major problems so I wouldn't call the car crappy. You get what you pay for.
Get your Cobalt's suspension and alignment checked out by a reputable shop. They are a light car so there's no reason for you to be going through tires like that. Tire scrubbing and misalignment might also account for the loudness and shaking that you mention, too.
See if it has a salvage title, some mechanics slap together wrecks and sell them as 'gently used'. It may meet alignment specs and still be out of whack.
Good luck. I like my 2007 Cobalt and haven't had any of the trouble that you've had.
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