Human Grand Prix II is a sequel to Human Grand Prix, continuing the racing theme on the Super Nintendo. As a sequel, it likely improves upon the original game by enhancing graphics, gameplay mechanics, and features. It might introduce new tracks, cars, and game modes.  The details would again require further research into specific gameplay features and developer information.  Being on the Super Nintendo suggests it aimed for enhanced visuals compared to earlier generation racing games. 

Human Grand Prix II (Japan)

Hourai Gakuen no Bouken! - Tenkousei Scramble (Japan)