Just don't tweet from behind the wheel, Okay?

Chicago is the most recent city where General Motors is looking to promote its Chevrolet Volt extended-range plug-in by offering hardcore Tweeters and other social-media mavens free extended test drives.

Chevy is targeting 300 of Chicago's most active social-media users with offers of free, three-day Volt test drives for waxing poetic – in 140 characters or less – about the model, the Chicago Tribune reports. GM is looking for hardcore Tweeters with "influence in technology and green issues."

Earlier this year, GM ran similar promotions in Los Angeles, Seattle, San Francisco and Denver. For each metropolitan area, the automaker targets social-media users within a 45-mile radius, the newspaper says. The Volt has long been a part of social media sites like Facebook and GM isn't the only automaker to use your online presence to try and sell you cars.