We don’t know where it’s from, but apparently it’s genuine.
Daily Radar are purporting to have a genuine Grand Theft Auto 3 screenshot. They couldn't get anything out of developers Rockstar (presumably, they say, because they're still supping on Turkey sandwiches and belching wine, but more likely one would think, because the world doesn't turn fast enough). Indicating a rather significant departure from the game's roots, the shot is in full 3D, with a Police car, some bodies and a beaming streetlamp. Although the screenshot looks fairly realistic, there's plenty to be critical of, including the rather bland texturing and the lack of any real action. It looks rather like "Driver" did, but slightly bluer. Daily Radar enthuse that they shall have access to a wealth of new information within the next few days. We will keep you posted. Update - apparently the mystery of where this came from is finally solved. It was provided to Grand Theft Auto mega-site GOURANGA! by Sam Houser at Rockstar, and then "borrowed" by Daily Radar a couple of days later. Top work, chaps.