the week: a plane crash killed Iso and Bizzarrini supporter Mitch Michelmore and his son as they were on their way back to California. Michelmore "had a Chevrolet dealership in Reseda, California and he had sold quite a few Iso Rivoltas; he was enthusiastic about the cars and interested in the racing version (the Grifos) and was seriously considering a sales activity for them in this country", according to C. Rino Argento. Argento summed up the week: “This was the end of a terrible week and the pain was unbearable for me, the organizer of this adventure! In great part because of my initiative and planning all these people had congregated at Sebring for what was supposed to be a fun, interesting, successful, and profitable race and it turned out to be a human and material disaster!” 5300 Strada In 1966 Bizzarrini S.p.A. released a street legal Grifo A3C as the Bizzarrini 5300 GT Strada (or Bizzarrini 5300 GT America, depending on the market). The body shape and mechanical parts were much the same as the Iso A3Cs, resulting in a coupe that is in height. At least three 5300s were turned out as Style Italia-designed spyder/targa versions, all of which survive and are currently owned by the same person. 1900 GT Europa Bizzarrini also managed a scaled-down 5300 GT project. Designed for GM-Opel, it was based on the Opel 1900 platform. Bizzarrini's proposal was more aggressive and attractive in appearance, like a small 5300 GT. The production Opel GT was designed by factory stylists and was less aggressive, but still beautiful. Bizzarrini then decided to build the car on his own. Around 17 prototypes were completed. The car is officially named as the Bizzarrini 1900 GT Europa. One of these cars has a barchetta ("little boat") body. Some cars are powered by 1.3 L and 1.6 L four-cylinder engines sourced from General Motors, Alfa Romeo and Fiat. There is even a highly developed racing version with a SPICA fuel injection system. P538S Bizzarrini's advanced ideas emerged again with the superb Bizzarrini P538S, P for posteriore, 53 for the 5300 cc Corvette engine, 8 for V8 engine and S for Sportcar. The first V-12 car was ordered by American racer Mike Gammino. This Barchetta raced in the 1966 Le Mans (DNF) and was even entered in 1967, but did not start (DNQ). In 1966, after a spin at the start