Between the wars
After the end of the war the 11.1 continued with a larger, 1,400 cc, engine and standard electric lighting as the 11.9 until 1923 and the updated 12 until 1926. Following Wilbur Gunn's death in 1920, three existing directors headed by Colin Parbury took charge.[2] The first of the company's sports models was launched in 1925 as the 14/60 with a twin-cam 1,954 cc four-cylinder engine and hemispherical combustion chambers. The car was designed by Arthur Davidson who had come from Lea-Francis. A higher output engine came in 1927 with the two-litre Speed model which could be had supercharged in 1930. A lengthened chassis version, the 16/65, with a six-cylinder 2.4-litre engine, was available from 1926 to 1930. Their final car of the 1920s was the three-litre using a 2,931 cc six-cylinder engine.[7] This continued until 1933 when the engine grew to 3,181 cc and was also available with a complex eight-speed Maybach transmission as the Selector Special.
A new model for 1933 was the 16–80 using a two-litre Crossley engine with preselector gearbox from 1934. A new small car, the Rapier came along in 1934 with a 1,104 cc engine and pre-selector gearbox. This lasted until 1935 but more were made until 1938 by a separate company, D. Napier & Son of Hammersmith, London. At the other extreme was the near 100 mph 4.5-litre M45 with a Meadows-supplied six-cylinder, 4,467 cc, engine. A true sporting version, the M45R Rapide, with a tuned M45 engine and a shorter chassis, achieved a controversial Le Mans victory in 1935.[8] Also in 1935 the three-litre grew to a 3.5-litre.
All was not well financially and the receiver was called in 1935,[9] but the company was bought by Alan P. Good, who just outbid Rolls-Royce.[2] He also persuaded W. O. Bentley to leave Rolls-Royce and join Lagonda as designer along with many of his racing department staff.[2] The 4.5-litre range now became the LG45 with lower but heavier bodies and also available in LG45R Rapide form. The LG45 came in three versions known as Sanction 1, 2 and 3 each with more Bentley touches to the engine. In 1938 the LG6, with independent front suspension by torsion bar and hydraulic brakes, came in.
Along with ex-Rolls-Royce employees, Stuart Tresillian and Charles Sewell, and design expert Frank Feeley, Bentley hid distaste for the primitive conditions of Lagonda's factory, and got to work on the new engine that was to become his masterpiece, the V-12, launched in 1937. The 4,480 cc engine delivered 180 bhp and was said to be capable of going from 7 to 105 mph in top gear and to rev to 5,000 rpm. The car was exhibited at the 1939 New York Motor Show: "The highest price car in the show this year is tagged $8,900. It is a Lagonda, known as the "Rapide" model, imported from England. The power plant is a twelve-cylinder V engine developing 200 horsepower."[10]