The Cubitts Engineering Co. Ltd. was originally a construction company which built much of Central London - Covent Garden Market, the Cenotaph and the 'new' east wing of Buckingham Palace.
[2][4] In February 1925 a receiver was appointed, Cubitt was declared bankrupt and third party investors, such as James Putman of Farringdon, lost a lot of money.
[5][2][6] After the demise of Cubitt motor manufacturing in 1925 and the A.C. Cars engine manufacture circa 1927, the Great Southern Works was involved in other piecemeal projects including making shop-fittings until it was demolished and redeveloped for domestic housing in the 21st century.
The 16/20 used 2.8 litre, 4 cylinder engines with coil ignition, plus a four speed gearbox with a central gear lever.
It was a family car that could achieve 50 mph for £442, and was considered good value by contemporary motoring magazines.