Giannini 600 Coupé
The Giannini 600 Coupé by Viotti.
Vehicle Overview
The Giannini 600 Coupé Viotti was a one-off prototype automobile developed in the late 1950s by Carrozzeria Viotti on commission from Giannini Automobili. The vehicle was based on the Fiat 600 platform, retaining the rear-engine, rear-wheel-drive configuration characteristic of the donor model. Giannini was a Turin-based firm known for tuning and modifying Fiat vehicles, with particular attention to performance enhancements. The body was designed by Giovanni Michelotti, whose work for Carrozzeria Viotti gave the vehicle a streamlined coupé profile markedly distinct from the standard Fiat 600’s utilitarian form. The design featured a lower roofline, a tapered rear section, and integrated headlights and grille elements consistent with mid-20th century Italian automotive styling. The body was constructed using steel panels over a modified chassis to accommodate the revised proportions. Mechanically, the vehicle utilized a modified version of the Fiat 600’s 633 cc inline-four engine. Giannini’s tuning included alterations to the cylinder head, increased compression ratio, and an improved exhaust system, resulting in an estimated output of approximately 40 horsepower. This represented a notable increase over the standard Fiat 600 engine, which produced roughly 21 to 23 horsepower in its original configuration. The transmission remained a four-speed manual, driving the rear wheels via a transaxle layout. Suspension and braking systems were largely unchanged from the donor car, with independent front suspension and a live rear axle supported by leaf springs. Braking employed drum assemblies on all wheels. The prototype did not proceed to production and was constructed as a demonstration of Giannini’s tuning capabilities combined with bespoke coachwork. No factory records provide a chassis number or detailed ownership history, and the vehicle is understood to have remained a unique example. The Giannini 600 Coupé Viotti exemplifies the post-war Italian trend of small-scale coachbuilt sports and performance cars based on mass-produced compact models. It reflects collaborative efforts among designers, coachbuilders, and tuning firms within the Italian automotive industry during the 1950s.
Technical Specifications
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Body
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Year1957
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MakeGiannini
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Model600 Coupé
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CoachbuilderViotti
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Units built1
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Engine Type4L
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DESIGNER
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