Marathon Choro-Q (Japanese: マラソンチョロQ Marason Chorokyū) is a sub-series of the Choro-Q HG toyline that was released in 1988. It is themed around rally racing, and consists of eight cars. Certain cars in this line-up feature the liveries of real-life rally racing vehicles. It is in this sub-series that the Blue MAX pullback engine was first introduced.