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THE ITALIAN COACHBUILDER SITE

Siata 1100 Coupé Viberti

1939Coachwork by Viberti

THE VEHICLE AT A GLANCE

Model dossier

Production period
1939
Body style
Coupé
Chassis
508C-238030
Type
One-off
Production
1

THE PEOPLE BEHIND THE CAR

Coachbuilding, design & conversions

PRICE & SALES RECORD

Vehicle value

Original price
Not documented
Latest recorded sale
Not documented

01 / THE STORY

History & context

The Siata 1100 Coupé Viberti is an exceptional example of Italian automotive ingenuity, combining racing performance with cutting-edge aerodynamic design. Conceived in 1939, this unique model is a product of collaboration between Siata and Viberti, with the visionary engineer Luigi Rapi leading the design process. The car epitomizes the spirit of Italian racing specials from the pre-war era, utilizing Fiat’s reliable mechanical components as a foundation while pushing the boundaries of style and engineering. The Siata 1100 Coupé Viberti is famously known as the Berlinetta Aerodinamica, a term reflecting its streamlined, aerodynamic profile reminiscent of an airplane wing. Rapi’s innovative approach, inspired by his work on the aerodynamic Lancia Aprilia for Colonel Mario Leoncini, resulted in a lightweight, dynamic vehicle weighing just 560 kg. The car’s sleek lines and fluid silhouette were achieved through advanced aeronautical concepts, marking it as a pioneer of lightweight racing construction. At its heart, the Siata 1100 Coupé Viberti features a modified Fiat 508 C chassis, paired with a Siata-tuned 1089cc Fiat 508 C engine. This combination of agility and power was essential for competitive racing, offering an ideal balance between speed and handling. Viberti, renowned for its craftsmanship, realized the bodywork in collaboration with Rapi, applying aerodynamic insights obtained from wind tunnel tests at the Polytechnic of Turin. The result was a car that not only looked fast but performed remarkably on the track. The story of this particular model is deeply linked to its original owner, Arialdo Ruggeri of Gallarate, who ordered the car from Siata. Ruggeri, who would later co-found the Scuderia Milan with his brother Emilio in 1946, was passionate about motorsport. The Siata 1100 Coupé Viberti achieved significant success at the Gran Premio di Brescia delle Mille Miglia, where Ruggeri and his co-driver Dansi finished in sixteenth place overall and sixth in the up to 1100 cc class of the Sport category. It is also believed to have competed in the 1947 Mille Miglia, though details about the race remain unclear. After a period of intense racing activity, the car’s journey took an unexpected turn. Following an attachment order from the Civil and Criminal Court of Milan, it remained in storage from 1951 to 1971, safeguarding its originality and heritage. Today, the Siata 1100 Coupé Viberti is celebrated not only for its remarkable engineering and racing pedigree but also as a rare embodiment of Italian automotive artistry from the late 1930s. It remains a coveted piece among collectors, admired for its blend of performance, design, and historic significance.

02 / TECHNICAL IDENTITY

Specifications & construction

Production & construction

Production
1
Production type
One-off

Design & manufacture

Designer · Candidate
Luigi Rapi
Manufacturer · Documented
Siata
Coachbuilder / Body Builder · Documented
Viberti

04 / INDIVIDUAL HISTORY

Chassis & provenance

Chassis 508C-238030
Chassis number
508C-238030
Engine number
108C
Year
1939

06 / EVENTS & AWARDS

Events & awards

Mille Miglia 508C-238030 · legacy_preserved
Date
1947
Chassis
508C-238030

Preserved CI 1.0 relation. Evidence field: _yoast_wpseo_primary_events. No award inferred.

08 / FROM THE ARCHIVE

Archive

No publishable archival references are currently catalogued for this vehicle.

10 / CONNECTED HISTORY

Timeline

Chronological history1 dated records
  1. 508C-238030 · Event

    Mille Miglia

THE CONVERSATION

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