Ramps can be introduced as obstacles. to further test the driver's ability.
On a hot day, the drive through the water hazard was refreshing.
The sand trap tested the durability of the racer and stamina of the
It might have been better to introduce the sand trap before the water, so the clogged up wheels could get washed off.
The gentleman raking the sand trap in the background must be a golfer, but it might be a good idea to smooth out the tracks made by the run through the sand.
Appliance crates made good tunnel obstacles that were more difficult for the pusher than the driver.