The body, available as a 4-door 4-light sports saloon or 2-door drophead coupe, appeared completely new though it continued some major pressings.

[3] The 1,944 cc four-cylinder engine was redesigned from the preceding Sunbeam-Talbot 2 Litre and still fundamentally the design of the 1937 Hillman 14 now badged Humber Hawk.

The sports saloon weighs 26.25 cwt (2,940 lb; 1,334 kg) The chassis with beam axles and semi-elliptic leaf springs all round was scarcely changed from the same 2 Litre model but provided a wider track.

[4] Close-coupled sports saloon and drophead coupé bodies were fitted to the chassis and the rear wheel openings were covered by metal "spats".

The 90 engine now developed 70 bhp (52 kW), and could pull a higher rear axle ratio for more comfortable cruising.

The favourable power-to-weight ratio meant that the Talbot could be "geared quite high" and still provide impressive acceleration where needed for "quick overtaking".

[6] The existing chassis was fitted with independent front suspension using coil springs mounted on a specially shaped new cross-member.

[4] The front of the 90's body was modified; the headlights were raised to meet international regulations and the fog and driving lights were moved and remounted to leave air inlet grilles on either side of the radiator.

[1] A Mk II was driven by Stirling Moss, Desmond Scannell and John Cooper to take second place in the 1952 Monte Carlo Rally.

In the Alpine Rally, Stirling Moss won a 'Coupe d'Or' (Gold cup) for three consecutive penalty-free runs in 1952, 1953 and 1954.

[13] A Mk III was the first car driven competitively by Jim Clark in driving tests and sprints around the Borders area of southern Scotland where he lived.

A 1951 Sunbeam-Talbot 90 Drophead Coupé regularly appears as Bunty's car in British TV series "Father Brown" (2013).