The pause menu is present in almost every Carmageddon game. This screen is accessed by pressing the game's pause button, and like most modern games, it has a menu that allows the player to quit the race, change some settings, etc.
The pause menu can also be accessed when at the choose race screen by pressing Escape.
The pause menu can be accessed from several menus, usually on a button labeled "Menu".
The player can only choose to abort the race or continue.
The player may continue or abort the race, or change the screen aspect from 16:9 to 4:3 - An option not found in the options screen.
This isn't quite a menu, but the player is still given the chance to quit the race by pressing A+B. After ~3 seconds, a message saying "A+B to quit" will appear at the bottom of the screen.