Magnet pictures an old cigarette promotional card, including its grainy printing quality, highlighting Captain George F. T. Eyston's Thunderbolt car: "travels overland at a speed of 312 miles per hour=5 1/5 miles per minute! The car is powered with two Rolls-Royce aero-engines and runs upon six wheels. It weighs seven tons. The total engine capacity of the monster is 73.164 c.c.; it has three speeds, independent springing for each wheel, and has tankage for 40 gallons of petrol."