transaxle made in house by Alfa Romeo. Although the Stradale is a road car, it has some limitations which may make the everyday use slightly hard, for example missing locks and limited ground clearance. Performance The car takes less than six seconds to reach from a standing start and has a claimed top speed of . In 1968, the German Auto, Motor und Sport magazine measured a top speed of and 24.0 seconds for the standing kilometer which made it the fastest commercially available car for this distance. It achieved this using an engine less than half the displacement of those in high-performance contemporaries such as the Lamborghini Miura, Ferrari Daytona, and Maserati Ghibli. Price and value Built in an attempt by Alfa to make some of its racing technology available to the public, it was the most expensive automobile for sale to the public in 1968 at US$17,000 (when the average cost of a new car in 1968 was $2,822). In the same year, in Italy, the retail price for a 33 Stradale was 9,750,000 lire. In comparison, the Lamborghini Miura was sold for 7,700,000 lire, while the average worker's wage was about 150,000 lire. The Alfa Romeo 33 Stradale are hardly ever traded; thus their value is very hard to estimate. At the 2015 Detroit auto show, while presenting the Alfa 4C Spider, Alfa's Head of North America estimated the current market value of the 33 Stradale at "well over $10 million". Concept cars Five 33 Stradales were used as concept cars with bodies being built by Italian coachbuilders: Bertone Alfa Romeo Carabo Marcello Gandini designed the Carabo, a wedge-shaped coupé with scissor doors, in 1968 for Bertone. The car was built on the chassis No. 750.33.109. Alfa Romeo Navajo The Alfa Romeo Navajo concept car was unveiled at the March 1976 Geneva Motor Show. The Navajo is based on the 33 Stradale chassis No. 750.33.11. It was given a full fibreglass coupé body. The car is equipped with 2-litre fuel injected (SPICA) V8 engine producing around at 8800 rpm. Pininfarina Between 1969 and 1971, Pininfarina designed a total of three vehicles on two 33 Stradale chassis: Alfa Romeo P33 Roadster The Alfa Romeo P33 Roadster of 1968 was an open vehicle with a lower windscreen and a striking, contrast-painted roll bar. The vehicle used in the chassis No. 750.33.108. It was presented to the public at the