These are screen shots I took from over the walls in Wacky Wheels. Click on one of the small images below and a larger image will appear at the top. If you click on another image, it replaces the image currently displayed. Hover the mouse over one of the images for a caption. Also see an animation of a car jumping over the walls (animated gif, 50 kB).
To drive over the black area like in shots 3 and 4, you have to boot to DOS (you can’t be running Windows), or use a DOS emulator like DOSBox.