Makes › SS United Kingdom › Jaguar 100 (SS100) · Rare production · 1935–1939 Very Rare

SS
Jaguar 100 (SS100)

Low-volume pre-war sports two-seater; first SS model to carry the Jaguar name

SS Jaguar 100 (SS100) (Wikimedia Commons: SS Jaguar 100)
SS Jaguar 100 (SS100) (Wikimedia Commons: SS Jaguar 100)
Photo: Calreyn88 · CC BY-SA 4.0
309BuiltIndependently researched
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
309 Built
Years
1935–1939
Engine
2,500 cc / 2.5 LFactory: 2.5 L
Power
76.1 kW / 103 PSFactory: 102 hp · converted
Top speed
151 km/hFactory: 94 mph · converted
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

The SS100 was the sports car of the first range to carry the Jaguar name in 1935 and marked a big step forward in performance for SS. Built in only 309 examples across 2½- and 3½-litre versions, it is one of the key pre-war ancestors of Jaguar's sports cars.

How rare is it?

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

Model rarityVery Rare 309 · Built1
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.

02Production & history

Production

Every figure says what it counts.

What is countedFigureBasisStatus
Total model productiontotal 2½ and 3½ litre cars (191 + 118) 3091 Factory production Independently researched

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

The SS100 grew out of the SS90, an open two-seater of 1935 of which only 23 were delivered, gaining new headlamps, a revised radiator and a 'Le Mans' type fuel tank. The 2½-litre car used a development of the SS1 engine with a Weslake-designed overhead-valve head and twin SU carburettors, giving 102 bhp and 94 mph. A 3½-litre version with 125 bhp followed in 1938, and the Jaguar Daimler Heritage Trust now owns ERB 290, a 2½-litre car raced in 1939.

Variants

How each version differs from the standard Jaguar 100 (SS100).

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

03Specifications

Technical specifications

Engine

Engine familyNot yet verified
Engine codeNot yet verified
LayoutNot yet verified
Displacement 2,500 cc / 2.5 LFactory: 2.5 L2
BoreNot yet verified
StrokeNot yet verified
Compression ratioNot yet verified
ValvetrainOverhead valves (Weslake-designed head)2
Fuel systemTwin SU carburettors2
Power 76.1 kW / 103 PSFactory: 102 hp · converted22½-litre; 3½-litre 125 bhp.
Power atNot yet verified
TorqueNot yet verified

Transmission & drivetrain

GearboxNot yet verified
Gears43 Independently researched
Driven wheelsRear3 Independently researched

Chassis, body & dimensions

ChassisNot yet verified
Front suspensionRigid axle, semi-elliptic leaf springs3 Independently researched
Rear suspensionRigid axle, semi-elliptic leaf springs3 Independently researched
BrakesDrums on all four wheels3 Independently researched
SteeringNot yet verified
Body constructionNot yet verified
Wheelbase 2.64 mFactory: 2.64 m3 Independently researched
Length 3.89 mFactory: 3.89 m3 Independently researched
WidthNot yet verified
HeightNot yet verified
Front trackNot yet verified
Rear trackNot yet verified
Kerb weight 1,180 kgFactory: 1,180 kg3 Independently researchedApproximate ("around").
Dry weightNot yet verified

Performance

Maximum speed 151 km/hFactory: 94 mph · converted22½-litre; 3½-litre 101 mph.
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.

Jaguar Heritage notes the SS100's differences from the SS90: new headlamps, a revised radiator and a 'Le Mans' type petrol tank.

Sources

Each number links to the exact facts it supports.

  1. 1
    Jaguar Daimler Heritage Trust – 1938 SS Jaguar 100 2½ Litre ERB 290 Level A
    • 309 total 2½ and 3½ litre cars (191 + 118)
    Accessed 2026-11-11
  2. 2
    1938 SS Jaguar 100 2½ Litre Level A Jaguar Daimler Heritage Trust
    • 2½-litre
    • overhead-valve head designed by Harry Weslake
    • twin S.U carburettors
    • 102bhp
    • 94 mph (151 km/h)
    Accessed 2026-11-12
  3. 3
    SS Jaguar 100 (history article) Level C Best Cars (bestcars.uol.com.br) · 2016-11-12
    • câmbio era manual de quatro marchas, sem sincronização para a primeira
    • A tração era traseira
    • ambas as suspensões tinham eixo rígido e feixes de molas semielípticas
    • os freios eram a tambor nas quatro rodas
    • distância entre eixos de 2,64 m
    • media 3,89 metros de comprimento
    • seu peso girava em torno de 1.180 kg
    Accessed 2026-11-13