Xlg Fizz Wizz 1
Check out these little soda powered CO2 cars from Popular Science 1947, the racers lined up and when they received the ‘GO!” signal they punctured the cartridge launching them off along a string… I think the kid in the other picture is young bookie -and- drinking milk while on the phone taking bets or something… – Link.

Related:

  • Slot car with wirelesss video camera – Link.
  • Slot Cars from Static Models – Link.