As far as I can tell, there is absolutely ZERO information on the game out there anywhere. According to the auction, the game is from Intermetrics, associated with Looking Glass Studios. The label has No Gamma written on on. The seller also thinks it is very similar to the unreleased Mini Racers.
This is from the same seller who sold the also unreleased N64 Wildwaters Extreme Kayak recently for $1,600.00. From what I understand they also have a third such proto, so we may see that at some point too.
Auction Here – Already $1,000+ with a full eight days to go.
Vintage 1980s Legend of Zelda Flip Wristwatch
Menace Beach NES
Sealed SNES Megaman X – Possibly fake and or shill bids.
X-COM: UFO Defense – This apparently became valuable at some point.
Kingdoms of Amalur: Reckoning Signature Edition
Caltron 6 in 1 (NES) Sealed
PS1 Metal Gear Solid Sealed
Batman Arkham City Harley Quinn Hand Painted Canvas
Nintendo Super Famicom Box Hotel System