Wen I was a kid, my Dad had a work car a '59 Chevy straight six, that smoked when you let off on the gas and accelerated again do I mean smoked...We were out during errands on a Saturday heading home on a back road when some as clown was riding dad's bumper.....Dad floors the car for a bit then backed off waited a few seconds and floored it again laying down a smoke screen which was promptly followed by the guy in back of us driving into a ditch and some rocks .....:~)