Some fun online Lightning McQueen games are "Mater to the Rescue," "Lightning McQueen's Desert Dash and "World Grand Prix Races." These games are free to play.
In "Mater to the Rescue," Lightning McQueen has gone too fast around a sharp corner and run off the race track into a dirt ravine. Mater must find him and launch his crane to help tow him back to the race track.
"Lightning McQueen's Desert Dash" is a game where Lightning McQueen is racing against Snot Rod, Boost, Chick Hicks and Strip. Keyboard controls are used to try to get to the finish line. "World Grand Prix Races" is a typical racing game where the player tries to beat the opponents with Lightning McQueen's car.