From wikipedia: Hi-Octane is a racing/vehicular combat video game released in 1995 for the PC, PlayStation and Sega Saturn developed by Bullfrog and based upon their earlier Magic Carpet game code. It is notable amongst racing games for its wide and open tracks, and the resulting freedom offered to the player, and also for its excessive speed. It suffered in the marketplace due to thematic similarities with the better received Wipeout by Psygnosis and the generality of its graphics engine made for a very short depth of view compared to contemporary racing games.