The Triumph Spitfire was a small two-seat sports car, introduced at the London Motor Show in 1962. The vehicle was based on a design produced for Standard-Triumph in 1957 by Italian designer Giovanni Michelotti.
The platform for the car was largely based upon the chassis, engine, and running gear of the Triumph Herald saloon, and was manufactured at the Standard-Triumph works at Canley, Coventry. As was typical for the manufacture of cars in this era, the bodywork was fitted onto a separate structural chassis, but for the Spitfire, being designed as an open top or convertible sports car from the outset, the ladder chassis was reinforced for additional rigidity by the use of structural components within the bodywork.
The Spitfire was provided with a manual hood for weather protection, the design improving to a folding hood for later models. In addition factory manufactured hard-tops could also be purchased and fitted for use in winter months.
Source: Wikipedia, 2011