Codemasters is already at the helm of some of the PC world's finest racing titles. GRID's got track racing down to a tee, while DiRT's replicated mud-based rallying to a staggering degree of accuracy. So what's left? How about both? How about tarmac and dirt with grass and mountains? How about 5,000 square miles of the stuff to be exact, an unbound chunk of west America, procedurally generated using satellite imagery and laced with 11,000 miles of road. That'll do, won't it?You can read the full preview here and don't forget to view our game profile.