specialty car. The PRV engine in the naturally aspirated model was identical to the version used in the Renault 25, a 2849 cc unit producing . The small power gain compensated for the weight increase, up by . Also available was the more powerful turbocharged model, which used a smaller (2.5-liter) displacement. The central backbone chassis (with outriggers for side impact protection) was built by Heuliez and then transferred to Dieppe. Aside from the body, most of the car was subcontracted to various suppliers. The drivetrain was mounted on a separate subframe, meaning it can be removed in as little as two hours. It was also moved forward (making the rear overhang shorter while nearly all other dimensions increased) compared to the A310, improving somewhat on that car's tailwards weight distribution. The transmission was the same Renault 30-based unit that the A310 had used, with some minor changes and somewhat longer fourth and fifth gears. Those gears were taller than for the GT Turbo model. At the time of introduction, the daily production number amounted to ten cars. This soon dropped considerably, as the somewhat less than prestigious Renault had a hard time in the sports car marketplace. The average production for the six full years was just above 1000 per annum, or just above three per day - almost identical to the A310 V6's annual production. Models Alpine wanted to launch a complete range of models. Three models were announced for public use. V6 GT Presented in November 1984, it is the base version. With a Cx of 0.28, and an SC of 0.48, the V6 GT set a record for aerodynamics at the time for a car in this category. The first model introduced was the naturally aspirated V6 GT (D 500), which entered production in November 1984, although press photos had been released in September 1984. The car was first shown at the 1985 Amsterdam Rai, immediately after which it also went on sale. Europa Cup model The Europa Cup was initially rolled out in July 1985. The model was conceived for racing during the Formula 1 Grand Prix in Europe, hence its name. Of the 69 cars manufactured between 1984 and 1987, it is estimated that only seven remain in the "civilian" version. All cars left the production lines of the Alpine factory in Dieppe with their registration certificate, but to recover the VAT, some Europa