Editing Alfa Romeo 6C/Chassis Registry/1500/0312917 (2) (section)

== Historical background (shared identity context) ==

The original 6C0312917 was described from new as a torpedo (drophead 4-seater) by "Carlton Carriage Ltd." and was raced in 1929 and 1930 by Earl Howe (later Lord Howe). That car was fitted at times with a ''testa fissa'' (“fixed head”) engine.

The fixed-head engine eliminated the head gasket, allowing increased compression and improved reliability in racing. Early in period, such special components were often regarded as remaining the property of Alfa Romeo even when installed in privately owned cars.

During the 1930s, the original car’s registration number changed, and the engine was later replaced.

Another car later became known in the UK as "0312917" based on use of engine 0312917 beginning circa 1938(?) in a chassis numbered 0332975 (based on the left-front frame number). The right-rear chassis stamping is not recorded and may not have existed.

During the 1960s, engine 0312917 was reportedly returned to its original chassis. That chassis/frame was eventually fitted with engine 10814381 — the configuration associated with this second car. The car last appeared in available notes when offered at auction in 2009.

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