What gas mileage average do you get on your 2010 Chevy Cobalt?

I'm thinking about getting a 2010 Chevy Cobalt. My work route is majority highway mileage (90%!) I was interested in what other consumers were reporting on the actual gas mileage they are getting out of the 2010 Chevy Cobalt model. I'm looking at a 4-door version, auto.|||I've got an 08 SS and I do most of my driving on roads with a 55mph speed limit. I get around 29 mpg.|||go for the cobalt xfe. it gets more than 35 mpg highway.|||I have the 09 Cobalt SS sedan, and I get about 25-27 mpg with about 50% back roads and 50% highway (and depending on whether I can keep myself from kicking the gas pedal harder - it is an SS, after all!!!)|||I have a 2007 Cobalt LT and i get about 35 mpg on the highway doing 70+ mph, and have gotten as high as 39 mpg at 55 mph. I get anywhere from 21 to 25 mpg city.