Syutokoh Battle '97Sega Saturn Japanese (NTSC-J) Software
(good case, poor instructions) - $3.97
This is much better known with the later Dreamcast releases, Tokyo Extreme Racer, but the Saturn installations were absolutely awesome, and this holds up as a great early 3D racer.
NOTE: All photos depict good condition items only; actual product may vary.
Used Syutokoh Battle '97 (good case, good instructions, good spinecard)
Used Syutokoh Battle '97 (good case, poor instructions)