Elfin Sports · 1964–1969
Elfin Type 100 Mono
The Elfin Type 100 Mono is an Australian 1½ Litre Formula racing car produced from 1964-1969 by Elfin Sports Cars. The name "Mono" refers to the fact that it was constructed upon a monocoque design.
Text from Wikipedia (CC BY-SA 4.0).
Successor: Elfin Type 600
All Elfin Sports Type 100 Mono data: UK builds, safety, recalls, model years →
Development
In 1963, Garrie Cooper began work on a revolutionary monocoque design of a car intended to dominate the newly created Australian 1½ Litre capacity class. Lotus Cars had already built the Formula 1 monocoque under the direction of Colin Chapman but the idea was still in its infancy so Cooper had only vague ideas of the design. The monocoque build removed the need for the traditional "Superleggera" tube frame chassis and harnessed a very light sheet steel frame to which aluminum panels were riveted for a very stiff structure. The finished structure weighed approximately 80 kg less than the tube framed Elfin Catalina it replaced. Uniquely, the hollow section of the body was sealed off to serve as the petrol tank. The Elfin Mono eventually made its debut at the August 1964 Melbourne Racing Car show and orders quickly followed. == References ==
Sections adapted from Wikipedia (CC BY-SA 4.0); text is shortened. Read the full article for the complete history and citations.
Specifications
- name
- Elfin Type 100 Mono
- Manufacturer
- Elfin Sports Cars
- Production
- 1964-1969; 19 built
- Predecessor
- Formula Junior / Catalina
- Successor
- Elfin 600
- Class
- Australian 1½ Litre Formula
- Engine
- Lotus Twin Cam, Clisby V6, Ford 1500, Ford Cosworth 1100
- Designer
- Garrie Cooper
Specification summary from Wikipedia (CC BY-SA 4.0). Check the linked sources for citations.
More photos
Sources
- Wikidata — https://www.wikidata.org/wiki/Q5359903CC0 1.0 · retrieved 2026-10-01
- Wikipedia — https://en.wikipedia.org/wiki/Elfin_Type_100_MonoCC BY-SA 4.0 · Text © Wikipedia contributors; revision 1363915679 · retrieved 2026-10-01
- Wikimedia Commons — https://commons.wikimedia.org/wiki/File:1965_Elfin_Mono.jpgCC BY 2.0 · Photo: dicktay2000 (Flickr User) · retrieved 2026-10-01
- Car Model Index — https://models.autoculturesociety.com/Compiled record. Sources that do not permit reuse are not copied; this index is credited instead.