They screwed the rally aspect of the game, for codemasters to produce a game of the quality of CMR4, then to produce the bullshit effort that is the rally section of V8 supercars 2, is unbelievable.
The handling model is unimpressive - the default is too dull and unresponsive, the advanced model is overly responsive, and it seems to drop frames at times - and before anyone blames my PC, it's definately not that (AMD Athlon 64 3200+, 1gb ram, radeon 9600XT extreme) it's not a bad game, but there is definately room for improvement IMO
Edit: Don't get me started on the piss poor effort they did on Mt Panorama either