THE VEHICLE AT A GLANCE
Model dossier
- Manufacturer
- Alfa Romeo
- Base model
- 1900 Sprint
- Coachbuilt version
- Conrero Supersonic Ghia
- Coachbuilder
- Ghia
- Production period
- 1953
- Body style
- Coupé
- 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 Alfa Romeo 1900 Sprint Conrero Supersonic: Leading up to the 20th Mille Miglia, Swiss gentleman driver Robert Fehlmann approached the turin tuner for Alfa Romeo and Lancia vehicles, Virgilio Conrero, with the desire to build him a special racing sports car for the upcoming race. As a result, Conrero first developed a racing car chassis. For the front suspension he chose parts of the Fiat 1400 and parts of the Lancia Aurelia for the rear suspension. As an engine, he used an Alfa Romeo 1900, which he heavily modified and equipped with four Dell’Orto carburetors. The transaxle power transmission was also taken over by the Lancia Aurelia. For the development of the body, Conrero commissioned his friend Giovanni Savonuzzi. Savonuzzi, known by Cisitalia, had just become head designer for bodies at Ghia. He designed a streamlined body called Supersonic with a long bonnet, squat passenger compartment and short tail. The sideline resembled a fast plane or rocket, tapering at the front and nozzle at the rear. The roof was reminiscent of an airplane cockpit and had a rear window that stretched to the windscreen and gave the impression of a glass dome. The first public presentation took place at the Turin Motor Show in 1953. There, the car was one of the big attractions. The car’s second public appearance was at the Mille Miglia, when it started as number 453. In the race, it crashed and burned out. The body, which was likely partly made of aluminum, was so badly damaged that it could not be saved. Chassis and engine were however further used. Conrero revised the engine and designed a Spider body for the chassis. Now called Conrero Sport or Conrero Alfa Romeo Sport, the race car started again as number 511 while controlled by Fehlmann at the Mille Miglia in 1954. There, it featured a plexiglas dome, which wasn’t used again later.
02 / TECHNICAL IDENTITY
Specifications & construction
Production & construction
- Production
- 1
- Production type
- One-off
- Mechanical platform
- Alfa Romeo 1900 Sprint / Conrero special
- Construction features · Legacy attribution
- Rebodied
Engine & performance
- Specification notes
- TECH 2026-09-21 — verified Supersonic history identifies the Ghia/Conrero car as an Alfa Romeo 1900 Sprint-based special. The 1900 Sprint/Conrero basis is structured; individual engine/body specifications remain separate.
Design & manufacture
- Coachbuilder / Body Builder · Documented
- Ghia
- Manufacturer · Documented
- Alfa Romeo
- Designer · Documented
- Giovanni Savonuzzi
- Design features · Legacy attribution
- Space Age · Supersonic
04 / INDIVIDUAL HISTORY
Chassis & provenance
Ownership & provenance
- Ownership & history · Legacy attribution
- Destroyed
06 / EVENTS & AWARDS
Events & awards
35° Salone Internazionale dell'Automobile – Torino General · legacy_preserved
- Date
- 1953
- Chassis
- General
Preserved CI 1.0 relation. Evidence field: _al_listing_engine_location. No award inferred.
07 / THE VEHICLE IN DETAIL
Photo gallery 5 photographs
08 / FROM THE ARCHIVE
Archive
No publishable archival references are currently catalogued for this vehicle.











THE CONVERSATION
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