For an up-front cost of $500, and a monthly fee of $29, you'll soon be able to surf the web in your Chevrolet, Buick, GMC or Cadillac truck or SUV.

Autoblog reports, "Everywhere connectivity is even closer with the announcement that GM will be offering dealer-installed Autonet routers in its SUV and truck offerings."  The routers can be ordered on new vehicles, or installed in existing ones.  There is no word on whether GM plans to extend the offer to sedans and coupes, but the device itself is a simple portable router that could easily be installed in any vehicle.

Automotive News explains, "The device, from Autonet Mobile, of San Francisco, creates a Wi-Fi hotspot that extends 150 feet within and around the vehicle, allowing occupants to use portable devices to tap into the Web."  GM sees several applications for the system.  AN reports, "The idea is that rear-seat passengers can use laptop computers, game players and other portable devices while people in the front seat can use the connection to stream Internet radio stations into the vehicle."

GM isn't the first automaker to add Wi-Fi to its cars.  Kicking Tires reports, "Chrysler was the first automaker to offer Autonet routers in its vehicles over a year ago, and Volkswagen jumped on board this August, offering router docking stations in the Routan minivan."

If you're in the market for a new car, check out the U.S. News rankings of this year's best cars as well as this month's best car deals.