Eh, the Sonic Drift games were a bore, Sonic R was boring/way too easy, and Sonic Riders was beautiful, but ridiculously difficult. I gave up on that game after 2 days of trying to finish the first championship. I obliterated 3 of the Gran Turismo games yet Sonic Riders belittles me?! It boggles my mind!
I'll be astonished if Sega makes a good Sonic-style racing game this time around.
What I'm curious about is the release of a new 2D adventure Sonic game set to release sometime in 2010. So called "Project needlemouse".