Based on 1988 DJL Software/Martech Spectrum 48k & 128k combined releases. N.B. The C64 conversion was near-complete, but never saw a release due to Martech going bankrupt
 Licensed game endorsed by 1980s/90s British Formula One and CART Indycar champion driver Nigel Mansell.  The titlescreen is missing in THE BUMPER QUAD PACK compilation version.