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Alfa Romeo 1900 C52 Disco Volante Fianchi Stretti

The narrow-body C52 evolution, distinguished from the original Flying Saucer’s enveloping form.

Updated October 1, 2026 • Rarity Rides editorial team
Collector fileALF-050Documented by Rarity Rides
Production1
Model years1953
At a glance

Alfa Romeo 1900 C52 Disco Volante Fianchi Stretti

The narrow-body C52 evolution, distinguished from the original Flying Saucer’s enveloping form.

What does Fianchi Stretti mean?

Fianchi Stretti means narrow flanks or narrow hips. In the C52 story it identifies the slimmer open-body development of the Disco Volante idea. That phrase is useful because it describes a visible change rather than simply repeating the programme name. The narrow version should have its own image and profile, not borrow the original spider’s broad silhouette. Read the factory or museum reference for its documented context.

A development intended for competition

The Alfa Romeo museum describes new narrow-body coachwork intended for Sport races following the spider’s presentation. This establishes a specific purpose for the evolution. The inventory places it under 1953. The body’s importance lies in what it changed within the experimental programme, rather than in a claim that it was a normal production option offered alongside the road-going 1900.

One narrow-body configuration

Alfa Romeo’s historical programme account expressly identifies one Fianchi Stretti version among five configurations. That single-configuration figure is used here. It is not an additional five-car production run, and it is not combined with the counts attached to the coupe or original spider. A configuration can be unique even within a programme that contains several cars.

Why the terminology can be confusing

The English C52 collection sheet labels one configuration Fianchi Spessi, while the separate manufacturer account explicitly names Fianchi Stretti. This profile follows the narrow-body wording in the manufacturer’s breakdown and the physical form shown in Mulhouse. The discrepancy belongs in the source notes; it should not become a reason to merge two visibly different body identities.

The photographed narrow-body car

The photograph records the preserved C52 at the automobile museum in Mulhouse in 2014. Its slimmer form is useful evidence for comparing the design with the original wide-bodied spider. As a visual interpretation, the more conventional relationship between wheels and body makes the car read as a compact sports racer, while the front treatment retains a recognisable connection to the C52 family.

What the specifications can and cannot establish

The entry belongs to the four-cylinder C52 branch, but detailed technical fields remain open here because the cited records do not provide a complete narrow-body-specific specification. The broad spider’s power, weight and dimensions are not automatically transferred. A meaningful comparison can still explain body evolution without filling every numeric field with values from a different configuration.

Following a prototype through body changes

A proper historical file should trace chassis identity and body configuration across dated appearances. Establish whether a change represents factory development, later repair or restoration. Compare contemporary images with the preserved car’s wheel openings, nose and tail, and record the evidence behind each attribution. For experimental cars, the sequence of changes is often the central story, not an inconvenience to be removed from it.

Its significance within the Flying Saucer project

Fianchi Stretti shows that the programme did not stop with its most theatrical shape. A narrower body offered a different interpretation of the same experimental direction. Keeping this version distinct helps readers follow that process. Its rarity is attached to a defined configuration, and its archive value comes from understanding that configuration beside the original spider and closed coupe.

Frequently asked questions

What does the name mean?

Narrow flanks or narrow hips.

How many does the manufacturer identify?

One narrow-body version within the wider C52 programme.

Does it look like the original broad spider?

No. The preserved narrow-body form is visibly slimmer.

Are all of the broad spider’s specifications copied here?

No. Narrow-body-specific technical values require their own documentary support.

Related vehicle profiles

Sources and further reading

  1. Alfa Romeo: the Fianchi Stretti configuration in the five-car programme
  2. Museo Alfa Romeo: the subsequent narrow-body development
  3. Photographic catalogue: the preserved narrow-body C52 in Mulhouse

Photo and credit

Alfa Romeo C52 Disco Volante Fianchi Stretti at the automobile museum in Mulhouse, photographed in 2014; the narrow-body spider. Photo: questa_ta / Wikimedia Commons · CC BY 2.0. Resized and JPEG-compressed for web display; no content retouching. Website layouts may crop the image.

The collector file

Why this machine matters

Fianchi Stretti means narrow flanks or narrow hips. In the C52 story it identifies the slimmer open-body development of the Disco Volante idea. That phrase is useful because it describes a visible change rather than simply repeating the programme name. The narrow version should have its own image and profile, not borrow the original spider’s broad silhouette.

The collector file

Built in limited numbers

1; named Fianchi Stretti configuration

The data file

Specifications

Factory specifications may vary by model year, market and configuration.

Identity & production

Official model
Alfa Romeo 1900 C52 Disco Volante Fianchi Stretti
Country of manufacture
Italy

Powertrain & performance

Engine
Four-cylinder C52 experimental branch; narrow-body-specific technical values unconfirmed
Drivetrain
Rear-wheel drive
Evidence & accountability

Sources and verification

  1. www.media.stellantis.com
  2. www.museoalfaromeo.com
Last fact-checked2026-09-30
Reviewed byRarity Rides editorial team