I tried Need for Speed Carbon last night, it really doesn't look too good on Dolphin (messed up movies, missing music). Maybe I'll try the PS2 version instead. I'll have to get InitialD and Tokyo Xtreme Racer Drift 2 and give them a go as well.
Oh, I and love Sega Rally! Pumped a fortune into that machine when it was released. I also have the Sega Model 2 and Model 3 emulators on my PC.