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THE ITALIAN COACHBUILDER SITE

BMW 328 Colli Volpini

1947Coachwork by Colli

THE VEHICLE AT A GLANCE

Model dossier

Production period
1947
Body style
Spider
Engine
6 cilindri in linea — donor/base BMW 328
Type
One-off
Production
1
Displacement
1,971 cc
Power
80 CV

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 BMW 328 Colli Volpini is a one-off post-war sports car created in 1947, uniting German engineering from the pre-war BMW 328 with bespoke Italian bodywork executed by Carrozzeria Colli of Milan. The project was commissioned and designed by Giancarlo Volpini, an Italian engineer and racing enthusiast whose later activities included involvement in the Arzani-Volpini Formula One entry. The vehicle was completed in time for exhibition at the 1948 Milan Motor Show, where it was displayed as a singular representation of transitional automotive design in postwar Europe. The underlying chassis originated from a BMW 328, a model first introduced in 1936. The original car employed a tubular steel frame and an inline six-cylinder engine displacing 1,971 cubic centimeters. The power unit, noted for its hemispherical combustion chambers and innovative valve gear, produced approximately 80 horsepower. The 328 was widely regarded for its light weight and competitive capabilities, achieving numerous motorsport victories prior to the interruption of production during the Second World War. In the aftermath of the war, numerous BMW 328 chassis found their way into Italy, often through private acquisition or wartime salvage. These chassis were occasionally repurposed by Italian carrozzerie, who applied new bodywork reflective of contemporary Italian styling trends. In the case of the Colli Volpini, the original 328 running gear was clothed in a streamlined spider body. The design featured fully integrated fenders, a smooth and uninterrupted bonnet line, a sharply raked windshield, and a tapered tail, emphasizing aerodynamic purity and formal coherence. Carrozzeria Colli, active since 1931, had established a reputation for lightweight aluminum construction and custom-bodied sports and racing cars. The firm’s craftsmanship is evident in the precise panel fit and flowing metalwork of the 328 Colli Volpini, which stands apart from both the German original and standard Italian post-war sports car idioms. No further examples of this model were produced. Surviving documentation is minimal; chassis number, mechanical modifications, and later ownership history remain largely obscure. The current location of the vehicle is not publicly recorded. The BMW 328 Colli Volpini endures as a singular artifact reflecting the convergence of German mechanical design and Italian artisanal expression in the years immediately following the Second World War. Gilco chassis.

02 / TECHNICAL IDENTITY

Specifications & construction

Production & construction

Production
1
Production type
One-off
Construction features · Legacy attribution
Gilco Chassis

Engine & performance

Engine configuration
6 cilindri in linea — donor/base BMW 328
Displacement
1,971 cc
Power (CV)
80 CV
Engine speed
4,500 rpm
Specification notes
DONOR_BASE_ONLY — BMW Group Classic documents the BMW 328 with a 1,971 cc inline-six producing 80 PS at 4,500 rpm. Applied only to the BMW 328 donor/base; the 1947 Colli/Volpini special-body history remains independently researchable.

Design & manufacture

Manufacturer · Documented
BMW
Coachbuilder / Body Builder · Documented
Colli

06 / EVENTS & AWARDS

Events & awards

No events or documented awards are currently recorded for this vehicle.

08 / FROM THE ARCHIVE

Archive

References held in the vehicle dossier. Their inclusion does not establish that every historical claim has been independently verified.

ReferenceSource type
Jacques Leretrait autos-photos — Carrozzeria Colli: BMW 328 VOLPINI — 1947 jacques-leretrait.blogspot.com Independent coachbuilder visual index

THE CONVERSATION

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