Cornelius the Galloping Geargrinder is a character in Cars 2.
Cornelius The Galloping Geargrinder has been riding the rails of Carburetor County since the 1930s. Cornelius The Geargrinder was light on the tracks and extra efficient at running the mail into little towns like Radiator Springs. But by the 1950s, the delivery work dried up as the semitrucks began using the new straight-line highway that bypassed the old, curving train route. Other Geargrinders ended up at amusement parks and tourist traps, but old GG prefers to continue chugging along his original line—and to keep Tow Mater from trespassing in the tunnels !"