Rare Car Archive

Makes › Alfa Romeo Italy › 20-30 ES Sport · Rare production

Alfa Romeo
20-30 ES Sport

Sport version of the 20-30 HP, 124 built.

Still being researched: why it matters, identification guide, full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.

Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)
Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)
Photo: traumautoarchiv.de · CC BY-SA 2.0
?ProductionNot yet verified
0Chassis documentedin this archive
?SurvivingNot yet verified
Contents
  1. 01Overview
  2. 02Production & history
  3. 03Specifications
  4. 04Colours & options
  5. 05Individual cars
  6. 06Reference

01Overview

At a glance

Built
Not yet verified
Years
Not yet verified
Engine
Not yet verified
Power
Not yet verified
Top speed
Not yet verified
Body
Not yet verified
Designer
Not yet verified
In this archive
Not yet verified
Surviving
Not yet verified

Sources and any conflicting figures are in the sections below.

Why it matters

Not yet documented. Have a source? Contribute it.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Model rarityNot yet assessed Production figure not yet verified.
Specification rarityNot yet assessed
Colour rarityNot yet assessed
Individual rarityNot yet assessed
Historical rarityNot yet assessed
Survival rarityNot yet assessed

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

  • Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)
    Photo: traumautoarchiv.de · CC BY-SA 2.0
  • Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)
    Photo: Agence Rol · Public domain
  • Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)Alfa Romeo 20-30 ES Sport (Wikimedia Commons search)
    Photo: Agence Rol · Public domain

02Production & history

Production

Every figure says what it counts.

No production figures recorded yet.

History

The same production index lists the 20/30 hp ES Sport in its 1921 group as a four-cylinder, four-seater sportscar.

Variants

How each version differs from the standard 20-30 ES Sport.

No variants documented yet. Have a source? Contribute it.

03Specifications

Technical specifications

Engine

Engine familyNot yet verified
Engine codeNot yet verified
LayoutNot yet verified
Cylinders41 Independently researched
DisplacementNot yet verified
BoreNot yet verified
StrokeNot yet verified
Compression ratioNot yet verified
Fuel systemNot yet verified
PowerNot yet verified
Power atNot yet verified
TorqueNot yet verified

Transmission & drivetrain

GearboxNot yet verified
GearsNot yet verified
Driven wheelsNot yet verified

Chassis, body & dimensions

ChassisNot yet verified
Front suspensionNot yet verified
Rear suspensionNot yet verified
BrakesNot yet verified
SteeringNot yet verified
Body constructionNot yet verified
WheelbaseNot yet verified
LengthNot yet verified
WidthNot yet verified
HeightNot yet verified
Front trackNot yet verified
Rear trackNot yet verified
Kerb weightNot yet verified
Dry weightNot yet verified

Performance

Maximum speedNot yet verified
0–100 km/hNot yet verified
Fuel tankNot yet verified

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

04Colours & options

Factory colours & interiors

Original paint and trim, with the number of cars in each where a source gives it.

Not yet documented. Have a source? Contribute it.

Factory options & codes

Codes are shown exactly as written by the manufacturer.

Not yet documented. Have a source? Contribute it.

05Individual cars

Chassis register

Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.

Not yet documented. Have a source? Contribute it.

Competition history

Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

Auction & sale history

Documented public sales of the individual cars. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

See one in person

Museums where an example of this car can be seen.

No example is documented on public display yet. Have a source? Contribute it.

06Reference

Identification guide

How to tell an original from a replica or later conversion.

Not yet documented. Have a source? Contribute it.

Sources

Each number links to the exact facts it supports.

  1. 1
    All production, prototype & project Alfa Romeos 1910-1971 (index) Level C barchetta.cc (archived)
    • 20/30 hp ES Sport 4 4-seater Sportscar
    Accessed 2026-11-13

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