Best Simcade ever!!
GFX are good to excellent, for example, the cockpit is much better looking than 2010, and TCam looks beautiful at times with HQ reflections on the bonnet.
The best part about 2011 is the dramatically improved handling, as such it's a genuine challenge in wet or dry, speaking of wet, wet weather's been improved slightly, but they also included that annoying in your face all the time rain from Dirt3.
Both DRS and KERS work fine and are HUGE fun to use, and neither is a godmode, so they compliment your racing rather than define it, great job there.
I have nothing but love for the SP, but forget MP, that sux, as do most P2P MP.
AI is decent overall, but can still make some odd choices, either way, they're a challenge now, so it's all good.
A 2nd sizeable patch has been announced, so this game should end up becoming my favourite simcade game of all time, with GTR Evo being my favourite sim.