Microsoft received authorization from Volkswagen for the New Beetle, and Ford, for the Mustang and the F-350 Super Duty.[2][12] The decision to make only half the cars available at the outset was intended to promote a sense of competition.[3] Microsoft staff asked Angel Studios employees to prevent players from hitting pedestrians. Angel Studios (after deciding against rendering pedestrians in two dimensions) developed 3D pedestrian models that could run and jump out of the way. Midtown Madness included an option to remove pedestrians, as they do not alter gameplay but may affect system performance when in a group; consequently, the game does not require a 3D graphics card.[11]