Abstract: The wheel chock (100) is designed to prevent a vehicle (104) from moving in an unauthorized or accidental manner. The wheel chock (100) includes a longitudinal extension (200) to further improve resistance to rollover and tipping when the wheel (102) is pressed forcefully against the wheel chock (100). The extension (200) includes a protruding portion (210) that can extend over a relatively long distance along the tire sidewall (126) and allows the wheel chock (100) to create a latching engagement between a tooth (160) and a blocking element (112) on the base plate (110) beyond the front end of its main body (150).