Riley 12/6

The Riley 12/6 was a car made by the British Riley company from 1932 to 1935.

Riley 12/6
Overview
Manufacturer	Riley
Production	1932-1935
Designer	Percy and Stanley Riley
Body and chassis
Body style	4-door saloon 2-door coupe 2-door convertible
Powertrain
Engine	1.4 L Straight-6
Dimensions
Wheelbase	114 in (2,896 mm)[1]
Chronology
Predecessor	None
Successor	Riley 12/4

It had a 1458 cc straight-six engine with twin cams and either single, twin or triple S.U carburettors. The transmission was either a four speed manual or optional preselector gearbox. They were capable of a top speed of around 70 mph (113 km/h).[1] The chassis was a lengthened version of the one used on the Riley Nine.

They were available in Mentone saloon, Kestrel saloon, Lincock fixed head coupé, Ascot drophead coupé with dickey seat, Lynx tourer, Falcon saloon, Gamecock tourer and March two seat tourer, MPH two seater trial/sports 2-seater and Trinity 3-position-Drophead-Coupé.

The 12/6 engine was designed to fit in between the 9 and 14/6 engines for trialing and racing purposes. The 9 was 1087 cc, fitting in the 1100 cc class, and the 14/6 was 1633 cc, fitting in the over 1500 cc class. At 1458 cc, the 12/6 was designed to fit in the 1500 cc racing class.

As the 14/6 was basically a 9 with two extra cylinders on the end, the 9 & 14/6 engines shared the same parts and spares. The 12/6 didn't share parts with any other Riley, so many 12/6s have been bored out to the size of a 14/6 to compensate for spares.