Check out the new Hands-on Preview at PS3Fanboy:
"Unsurprisingly, MotorStorm: Pacific Rift plays much like its predecessor. The build running at Sony's E3 booth was incredibly stable, feeling nearly ready for release at any time. Simply watching the trailers should give you a good idea of what to expect: it's just like MotorStorm, with branching paths through each track. However, the new jungle environments offer a bit more detail than the PS3 launch title."