One very obvious thing racing games have yet often fail to really do well is recreate some proper back roads. A few games have created free roaming cities. But let's face it, cities are boring and generic. The whops are where the real fun is to be had.
While games like Big Red Racing (or more recently Motorstorm) let you stray from the track and drive over a few hills, Fuel's game world is completely open ended. It's the scale that is really mind blowing though - the map spans over 14,000km² in size. Apparently the world will be seamless too, meaning no loading between locations. That is beyond epic. Game trailers so far show airports, canyons and alpine roads. Fuel could be the game to finally take car games up a notch.