The Alvis TD21 had been highly successful for the Coventry based company and had gained a loyal customer base. In 1964 Alvis up-dated its coupe model with the more powerful TE21. The TE21 now had 130bhp and a choice of either manual (5 speed) or automatic transmission.
The styling of the TE21 remained similar to the previous car, although fashionable "staked" twin headlamps were a dramatic feature and contrasted with the otherwise traditional shape. In 1966 a triple-carb TF21 replaced the 'TE model and boosted power to a dizzy 150bhp. The suspension and interior was also up-rated and improved on the TF21 and the model stayed in production until 1967.