Alfa Romeo 6C 1500 SS chassis 0312.873

Alfa Romeo 6C 1500 SS chassis 0312.873 is a 1929 Alfa Romeo 6C 1500 Super Sport originally delivered to the British importer F.W. Stiles and currently preserved in the Louwman Museum.

The car is one of the rare supercharged 6C 1500 SS examples.

Factory specification

Year: 1929
Model: Alfa Romeo 6C 1500
Variant: 6C 1500 SS (Super Sport)
Chassis number: 0312.873
Engine number: 0312.872? (engine identity requires confirmation)
Coachbuilder: Zagato
Registration: GU 9699 (United Kingdom)
Exterior colour: Red
Interior: Black
Supercharged configuration

Delivery and early ownership

Chassis 0312.873 was delivered in April 1929 as part of a group of consecutively numbered 6C 1500 SS cars supplied to F.W. Stiles in the United Kingdom.

The car was registered to Mrs. Florence Stiles on 29 April 1929.

In 1929 it was owned and raced by London-based driver Edgar Fronteras.

Competition history

Brooklands Double Twelve (May 1929)

Driver: Edgar Fronteras
Event: Brooklands Double Twelve
Result: 12th overall

This establishes confirmed period competition history in the United Kingdom.

Engine identity

There are indications that chassis 0312.873 may have experienced an engine exchange with chassis 0312.872 at some stage in its history.

The precise timing and documentation of this potential swap remain subject to archival verification.

Museum history

The car is currently preserved in the collection of the Louwman Museum.

It is displayed as a supercharged 6C 1500 SS and represents one of the rare surviving examples of this specification.

Documentary references

Photographic and documentary sources include:

Beaulieu Archives
Alfa Romeo in Pictures (pp. 29, 32, 35)
Angela Cherrett – Alfa Romeo 6C (pp. 100, 150)

These sources depict the car on Milano registration plates.

Historical significance

Chassis 0312.873 is significant as:

A supercharged 6C 1500 SS
A member of the F.W. Stiles UK team quartet
A documented Brooklands competitor
A preserved museum example
A chassis with possible period engine interchange within the Stiles team

The car contributes materially to understanding Alfa Romeo’s UK competition programme in 1929.

Registry classification

6C 1500 SS
Supercharged example
UK Stiles team chassis
Documented Brooklands participation
Museum-held reference chassis

Chassis registry reference

See: Alfa Romeo 6C 1500 SS/Chassis Registry