year: 1956, a 13.5 hp engine drives this vehicle to 120mph
Let's say (complete swag) that it is using 1 GPH @ 120mph, that would translate into 120 MPG. Wouldn't it be cool if the beurocrats decided "what the hey, if you are getting 120mpg (without cheating using other energy sources), we don't care what you drive or how fast you drive it"?