The Golden Pyramid can make a great track.
Picture this: you drive trough a gate and enter the interior of the piramid, (which can be much larger than in WL 4) and you must race trough the slippery 40 Below Fridge, avoid the pirate ghost of Crescent Moon Village who tries to steal your items, and try to outrun the domino in Domino Row to get extra items. You take a final turn trough the Golden Passage while trying to avoid the black cat and dr. Arewo Stein. On the third lap the pyramid starts to crumble so you should try not to get crushed by giant gold nuggets, which have the same effect as thwomps.