No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $9.5K — a different platform, not this one.

Wacky Wheels

A car racing game you'll hate to finish!     Nothing beats the competitive feel of racing. Feel the thrill as you race past your opponent, slam their car into a water trap, and beat them by a bumper to the finish line. You won't want to finish because Wacky Wheels is too exciting: avoiding the obstacles, knocking against opponents, launching your weapons against them, beating them to the short cuts, engaging turbo mode on the straightaway, using your hand brake to skillfully hug tight corners without spinning out, and hitting jumps with perfect timing so that you sail above and past your opponents while executing a perfect 360 rotation in midair! There are three classes of tracks to race on, from novice to expert, which present a wide range of wacky racing conditions. All tracks have special obstacles and dangers: water traps, cacti, oil slicks, posts, stacks of tires, and more. Some tracks are surrounded by water and even lava. But what you're not expecting is the hedgehogs! Grab all the track-populated hedgehogs you can and hurl them like baseballs at the other racers to send them spinning out of control - giving you time to pass 'em by. Other weapons to collect include bombs, oil slicks, ice blocks, and flame balls. From start to finish you get edge-of-your-seat excitement and action. When playing, you'll grit your teeth, lean your body into the corners and scream "EAT MAGMA!" as you launch a hedgehog that sends the racer in front of you spinning into the lava!