Ironman Ivan Stewart’s Super Off Road

Ivan “Ironman” Stewart’s Super Off Road is an arcade video game released in 1989 by Leland Corporation. The game was endorsed by professional off road racer Ivan Stewart.
In the original arcade game, the red, blue, and yellow CPU trucks were ‘driven’ by “Madman” Sam Powell, “Hurricane” Earl Stratton, and “Jammin'” John Morgan, respectively. The names were taken from the development staff: Sam composed the music, and Earl and John were two of the software programmers. The Track Pack added “Steamin'” Steve High and “Hot Rod” John Rowe, representing graphics and project direction, respectively. By using these names, this meant that further licensing deals were not required.

Source: TheGamesDB