• by M. Vinci (Autodelta Italia Club)

Autodelta - The "Lost" sister of Ferrari - Part 3

Autodelta also built cars for the Sport Prototype category as well as for the Touring category. Its first designs date back to 1964 and the first car was built in 1965. The first prototype was built at Alfa Romeo Office Research & Development with Ing. Giuseppe Busso and Ing. Satta Puliga, for a concept of light Touring Car and then sent to Autodelta for development and additional changes required by the manufacturer. The car was fitted with the TZ2's four cylinder engine Twin Spark. This was a major step for Autodelta and Ing.C.Chiti that went on to develop a 1998 cc V8 engine. This was the first Alfa Romeo to be fitted with a rear engine integral with the gearbox and jointed rear axle. The chassis was inspired by aeronautical engineering and consisted of three aluminium pipes measuring 200 mm in diameter in the shape of an asymmetrical H designed to contain a rubber fuel tank.

The first Type 33 MockUp for the Aerodinamics Test

The rare pictures of first Type 33 prototype for Driving Test

The AUTODELTA creator and maker: Ing.Giuseppe Busso with Ing.Chiti on the box, testing the 33 prototype in Balocco Circuit, Milan.

From this prototype it's derived the Alfa Romeo Scarabeo, developed from Autodelta - Alfa Romeo R&S Office, with collaboration of OSI Laboratory (EX Carrozzeria Ghia) in Turin. They obtained another revolutionary car, this have a same "H" chassis and a wonderful shape, ideated from Eng. Sergio Sartorelli, at time OSI Design Manager. The Scarabeo Chassis with Bialbero Engine in transversal position, joined to GearBox, it's probably the first Modern Sport Car Concept everytime​! This Project was made before the Lamborghini Miura debut of 1965.

The picture of the Scarabeo Chassis (it's the same to 33 chassis) with Bialbero Engine in transversal position and joined to Gearbox. The Scarabeo it's probably the first Modern SportCar Concept everytime

Two Type 33 chassis assemble at AUTODELTA Factory

The Sergio Sartorelli's Sketch for first Spider version of Scarabeo OSI (look the analogism to Type 33 prototype)

Scarabeo section with Rear engine and "Tubolare H" chassis

The Scarabeo OSI Prototype

The result of all experiments was the Type 33, a car that weighed just 580 kg, the new V8 engine 2000cc and packed a power output of 270 bhp that propelled the long-reared version to a speed of 298 km/h. The car made its debut on 12 March 1967 and went on to win the Fléron timed trial.

The Type 33 debut at Balocco Circuit

Later, in 1968, it was used in the International Makes Championship and made its mark at the Daytona 24 Hour race - when Vaccarella and Schutz took first and second place in the 2 litre category - and the Targa Florio. In 1968, the 33/2 won 15 outright victories and 6 category races. Memorable outright wins were notched up at Vallelunga, Mugello and Imola, not to mention the first three category places in the Le Mans 24 h race. In Australia, the Alfa Tasmania-una Brabham with a 33 engine tuned to 2.5 litres- took four outright wins due to the 315 bhp developed by its 8800 rpm engine.

​ Type 33 "Fleron" at Targa Florio

Type 33/2 Daytona Prototype

The Type 33/2 Long Tail with its creator Ing.C.Chiti, at the 24H Le Mans, 1968

The Type 33/2 at Targa Florio Box, 1968

The following year, 1969, the 33/2 litre took 14 overall first places, 2 overall second places and also notched up 13 class wins. Thirty racing units were produced, complemented by an additional 18 units of an on-road Coupé version designed by Franco Scaglione of Turin and built from November 1967 to March 1969. This car was the fastest on-road Alfa Romeo in history because the eight cylinders of the two litre 230 bhp 33 could speed it to more than 260 km/h. The high price (ITL 9,750,000) limited its spread and ensured it remained a true dream car for the chosen few. The body was in 1 mm thick Peraluman that restricted the weight to just 700kg. Thank to 33 Stradale were created other revolutionary cars like "Carabo" for Bertone," Iguana" from Giugiaro, the P33 and "Cuneo" from Pininfarina and later the "Navajo" for Bertone. The type 33, with its particular "Tubolare" chassis, starting the SuperCar trend of Italian Coachbuilders. (Continue)

AUTODELTA 33 Stradale, Franco Scaglione design, 1967

33 Stradale Aerodinamics Test

Type 33 Stradale with the particular shape and the vertical doors

Type 33 CARABO, Marcello Gandini design for Bertone, 1968

Type 33 IGUANA, Giorgetto Giugiaro design for Italdesign, 1969

Type 33 - P33, Leonardo Fioravanti design for Pininfarina, 1969

Type 33 Navajo, Marcello Gandini design for Bertone, 1976

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