The car was capable of  with respectable acceleration. Horsepower and suspension improvements were made in line with Triumph's Mark 2 upgrade of the Vitesse in Autumn 1968, and the convertible was introduced at the same time.
The vehicle demonstrated respectable acceleration. Enhancements to horsepower and suspension were implemented as part of Triumph's Mark 2 update for the Vitesse in Autumn 1968, coinciding with the introduction of the convertible model.