Just a thought......one of my favorites was a small spread hand of cards painted on the cowl just above the hair pins (usually where the mad woodpecker or moon eyes was placed on some cars)

In this case the bottom card would be an 8 (siginfying a V8), second card would be a 3 or 4 (depending on a 3 or 4 speed transmission) then 3 deuces (tri-power) with the 2 of spades being the top card..