In 1933, the final year, the Sixteen gained a synchromesh gearbox and a mechanical fuel pump. From 1931-33 approximately 1045 were built.
Around 752 Twenty of the 1931-33 type were built.
Introduced in 1933, the Speed 20 use the 2916cc OHV six from the 1926-1930 Sunbeam 20 with a Zenith carburettor, rated at 20.9hp. It feature a crash gearbox and coil ignition. Saloon and Coupé body styles are available. Unfortunately it is competing in-house with the Talbot 105.
Połączenie z Talbotem.
16 HP Six-Cylinder Four-Seater Coupé, costing £695, have a 2193.6-cc (70 x 95 mm) OHV engine, with 18.2 HP treasury rating. Gearbox is four-speed synchromesh twin-top, wheelbase 10 ft 6 ¼ in, tyre size 30 x 5.25. The car have controlled shock absorbers and a central method of chassis lubrication.
20 HP Coachbuilt Saloon cost £795 and is most expensive of the range with the exception of the Limousine on the same chassis which have an ex-works price tag of £895. The 20 HP models (actual rating 23•8 HP) have a 3317•5-cc (80 x 110 mm) OHV Six engine.
Speed Model Coachbuilt Close-Coupled Saloon is priced at £745. The chassis is available at £500. Power unit is a 20.9 HP OHV Four of 2916-cc cubic capacity (75 x 110 mm). Wheelbase is 10 ft, tyre size 5.25-20. It is designed to give a high cruising speed and could be driven 'with the same ease and comfort as an ordinary touring car'.