was driven by endurance racing specialist Pedro Rodriguez and 1962 World Champion Graham Hill. Still, Hall’s Chaparral prevailed, overcoming the world’s best endurance racers and monsoon-like conditions. Probably the most influential of Hall’s designs was the Chaparral 2E prepared for the following year’s inaugural season of Canadian-American Challenge Cup competition. The Chaparral 2E featured side-mounted radiators, a semi-automatic gearbox and other innovations, but what people noticed most was the massive articulated wing mounted on pillars that soared several feet above the rear deck. Said fellow competitor, broadcaster and racing historian Sam Posey, “When those cars arrived on their double-axle trailers in the paddock at Bridgehampton, people just stopped everything and their jaws dropped down on the ground. Nothing in the world existed like that. The two cars went out and the world changed and we were part of it." Hall had innovated movable aerodynamic devices with a low-mounted wing on the back of the Chaparral 2C. The 2C won major races, but the wing was deployed more as an adjustable spoiler and worked on the rear of the car only, upsetting the car's balance at the same time it was providing crucial downforce. For the 2E, Hall used a symmetrical wing that would create minimal drag in the neutral position, but substantial downforce when tilted downward in the turns. To balance the effect, the 2E also had an adjustable duct in the nose. Both devices were connected to a pedal in the cockpit. Because the semi-automatic Chaparrals only needed a gas pedal and a brake pedal, the driver's left foot was available to activate the “downforce” pedal. “With the wing,” said Chaparral driver Phil Hill, “you could out-brake everybody, you could out-corner everybody, [and] you could drive under them. It really did feel like it had freak roadholding.” The 2E was demonstrably the fastest car of the inaugural Can-Am season, but reliability issues with the new design kept the team from converting its many poles and fastest laps into victories. The 2E missed the first of the season's six races because the wing wasn't yet ready and won only one of the remaining five, Hill and Hall finishing 1-2 at the Laguna Seca round where the cars performed flawlessly. That same year, the small team in Midland converted two of the older chassis for use in endurance racing's World Sportscar Championship. The first iteration — the Chaparral 2D coupe —