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The Summers Brothers, (the late) Bob and Bill, were probably best known for their bulletproof racing axles and extreme-duty chassis components. They engendered the pure racing ethos-no prize money, race for the hell of it, and go as fast as you possibly can. Bonneville was their stage, so ultimately they assembled four Keith Black alcohol-burning 426-type Hemis in one car. Note the extreme angle of the air stacks necessary for aerodynamic concession. Mounted in tandem, the front two engines drove the front wheels and vice-versa, thus their creation became the first piston-engine, wheel-driven car to 400 miles per hour, an unofficial 425.99 mph. Their record (409.277 mph flying mile) held for more than 30 years.