The only Alfa Romeo 6C 3000 CM (Competizione Maggiorata) Pininfarina Superflow IV ever made will be shown for the very first time in the UK at Salon Privé during the Chubb Insurance Concours d’Elégance on Thursday 31st August 2017. Famously picking up silverware with Juan Manuel Fangio driving the 1953 Mille Miglia, the Alfa Romeo 6C 3000 CM Colli Coupe was a car built for endurance racing. Just eight Works examples were made in 1953, two of which were handed to specialist coachbuilders Boano (for Argentine President Juan Peron) and Pininfarina and both converted for road use. Regarded as the most famous of the pair, the vehicle on display is the 6C 3000 CM (chassis 00128) that went to Pininfarina. During its time at the Italian-based coachbuilder it was given four different design adaptations, culminating in its current guise, known as the Superflow IV. The first iteration, known as the Superflow, was launched at the 1956 Turin Motor Show. Plexiglass was a fundamental part of the car’s original design and overall appearance: the front wheels were covered in the material, doubling up as headlight covers, and the hinged ‘gullwing’ sections on the roof were also made from Plexiglass. Evolving to Superflow II and repainted from its original colour of white with a black stripe to striking red with a white stripe, Pininfarina’s styling evolved to include a sharper nose made from steel and all Plexiglass apart from the headlight covers, which were removed. In 1959 at the Geneva Motor Show, the third design was shown and dubbed the Spyder Super Sport or Superflow III. It featured an open roof, but without the original nose and the headlight covers, which were removed. Fast forward to 1960, the car’s fourth and final design was displayed at the 1960 Geneva Motor Show. The Coupe Super Sport Speciale or Superflow IV was an amalgamation of all the best features of its previous versions. Returning for the Superflow IV was the striking use of Plexiglass, this time on the domed roof as well as the headlight covers. The car could be used as a Coupe and a Spyder, thanks to the fact that the panels were not hinged but could slide down and back underneath the rear window.