As per title was this the item that gave mr champion his Idea for what became the locost.

http://blog.modernmechanix.com/2006/08/16/build-your-own-mahogany-sports-car/?Qwd=./MechanixIllustrated/9-1956/speedball_special&Qif=speedball_spe cial_10.jpg&Qiv=thumbs&Qis=XL#qdig

quote:

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Since no differential is used, the drive is transferred to the left rear wheel only

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The finished article:
More info here
Rescued attachment Ariel-Powered-Speedball-Special.jpg

Nice car, crap engine spoils it.
The back two pots always overheated.

Nice comfy seat.

I wonder if it floated?

John Bolster built an earlier one, Bloody Mary, basically 2 lengths of wood as a chassis and 2 JAP V twin engines!
Rescued attachment Bloody mary.JPG