Tokyo/N.Y.-based creative shop Party just launched this new mobile game/app that makes riding in a Toyota extra fun for kids, but letting them in on the driving action. "Backseat Driver," created out of Toyota's newly minted toy brand ToyToyota, utilizes the iPhone's GPS to create a fantasy driving route for kids that mirrors what's happening on the real life road. Kids man their own vehicle that follows the path of the "Papa Car" and scores points by picking up objects encountered along the way (virtually, and in the real world). Players can save their routes to relive the fun, and as they rack up points they'll be able to customize their wheels. The ride, and the designs, can also be shared over Twitter.