I'm just going to list some games. Feel free to mention whatever you think was the best Racing Game of This Year.
Gran Turismo 5: Boredom Doesn't Occur Here
Forza 4: Probably the Most Well-Rounded Game Of The Bunch
Need For Speed: Hot Pursuit: Lazarus
DiRT 3: Going Sideways
Modnation Racers: LBP Meets CTR
Mario Kart Wii: The Image's Display Ratio just HAD to be so different.
Split/Second Velocity: Action, because Action.