Testing of the Chevy Beat is officially underway, and our friends at NextAutos have procured the first set of spy shots. The camo'd mule is still sporting the short overhangs and upright silhouette of the concept, but GM decided to equip the squat city car with another set of doors to make ingress and egress easier for rear-seat passengers.

Initial reports suggest that power will be provided by a 1.2-liter 16-valve DOHC inline-four, mated to either a manual or automatic gearbox. The Beat will make its production debut sometime in 2010 and will go on sale in Europe in early 2011. As previously reported, the Beat won't be making the trek to the U.S. until it meets the fed's crash-test standards, so we won't get a shot at the Beat until the next generation arrives – whenever that is.