Triumph Herald Convertible

The Triumph Herald Convertible was introduced in 1960 as a central element of the Zobo modular program developed by the Standard Motor Company. Unlike many contemporaries, the convertible was conceived from the earliest planning stages rather than derived after the saloon had entered production. Its development benefited directly from the decision to adopt a separate chassis, which allowed the open version to be realized without extensive structural reinforcement or loss of rigidity. The Herald Convertible shared the same cruciform chassis as the saloon, coupé, and estate, featuring independent suspension on all four wheels and rack-and-pinion steering. This architecture enabled the elimination of a fixed roof without compromising structural integrity, a significant technical advantage over monocoque rivals. The resulting body retained full-width doors and did not require heavy sills or additional bracing, preserving ease of access and low weight. Styling was by Giovanni Michelotti, who adapted the saloon’s proportions to an open configuration with minimal visual compromise. The windshield frame remained upright and structurally integral, while the folded soft top sat low behind the rear seats, maintaining clean side lines. Large glazed areas and thin pillars ensured continuity with the rest of the Herald range. The design avoided decorative excess, emphasizing clarity of form and structural logic. Prototype convertibles were built in Italy, with one arriving in Coventry in February 1959 during the final development phase. Series-production bodies were manufactured by Mulliners at the Tile Hill plant following its acquisition by Standard-Triumph. Final assembly took place at Banner Lane. The modular body panel strategy allowed the convertible to be produced alongside closed variants with limited additional tooling. At launch, the Herald Convertible was powered by the 948 cc inline four-cylinder engine producing 34 bhp, paired with a four-speed manual gearbox. Later versions adopted the 1,147 cc and subsequently the 1,200 cc engines as the range evolved. Production of the Herald Convertible ran until 1971, with approximately 70,000 units built.