A Stealworthy vehicle is one that can be added to the player's collection before the end of the game. This gameplay mechanic features in the first Carmageddon game and the Splat Pack. In those games, vehicles can't be bought for credits: they have to be unlocked. When the player wastes an opponent with a "stealworthy" vehicle while on the correct rank, there's a chance that their vehicle will fly upwards into the air, and the message "Car added to change car list" will flash on-screen. This means that the car has been added to the player's garage, and can be selected for use between races.