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.
07 / THE VEHICLE IN DETAIL
Photo gallery 5 photographs
08 / FROM THE ARCHIVE
Archive
References held in the vehicle dossier. Their inclusion does not establish that every historical claim has been independently verified.
| Reference | Source 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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