And finally, something completely different: not a stadium but an unpowered race car.
The Soap Box Derby is a competition where kids design and build little cars and then race them down a hill, using only gravity power. For fairness, everyone uses the same type of wheels, issued by the organizer. That means that the only legal way to reduce drag and get more speed is to reduce air resistance.
Yet most Soap Box racers have the driver sitting upright behind a steering wheel. Wouldn't he go faster if he could lie flat, as on a luge? Or he could try my ultra-streamlined design.
The roof is hinged at the rear. The driver lifts it open, climbs in, sits down, and closes the roof while bending all the way forward to touch his head to his knees. The top of the car is only 34 inches off the ground. There's a windshield in front, but in order to see through it, the driver has to use a periscope (mirrors near his shins and forehead). With no room to turn a wheel, he squeezes his right hand to steer. One hopes that young Soap Box Derby drivers would have stronger arms than I have sketched, and that they would be flexible enough to tolerate this tortuous position.
UPDATE:
A reader sent me a link
to
a real super-streamlined Soap Box
Derby
racer. Click on the picture.