Fit a low level net across the width of a car roof, then use it to play games of table tennis. Any advantage for the player who starts off at the front or back of the car is evened out when they switch ends half way through the game. The game can also be further varied by the players wearing leg extending stilts.-- xenzag, Jul 01 2017 The players should be in ski boots and the playing field slightly smaller. G's under cornering would be interesting.-- wjt, Jul 01 2017 Yes - a moving car would add another variation to the game, but I envisioned this as a static car.-- xenzag, Jul 01 2017 No cars with roof gutters then? or it will make for some fancy saving returns.-- wjt, Jul 01 2017 random, halfbakery