|Production||1937–1940 741 made|
|Successor||Alvis TA 14|
|Engine||1,842 cc OHV I4|
|Wheelbase||106 in (2,692 mm)|
|Length||170 in (4,318 mm)|
|Width||62 in (1,575 mm)|
The Alvis 12/70 was introduced by Alvis cars in 1937. It was a four-cylinder car related to the pricier six-cylinder Alvis Silver Crest.
Alvis designed and manufactured the four-cylinder 1,842 cc pushrod overhead valve engine which was similar to the engine of the Alvis Firebird but was, in fact, a new design. Its 63 hp (47 kW) was enough to propel the car to a top speed of about 80 mph (130 km/h). Alvis also designed and made the four-speed gearbox which had synchromesh on the top three speeds.
Many of the other components were outsourced to other suppliers in a bid to cut costs. The most common (saloon or drophead coupé) bodywork was by Mulliner of Birmingham.
A total of 741 cars was manufactured until 1940, with 121 still surviving. In 1945 the 12/70 was replaced by the modernized Alvis TA 14, but much of the 12/70 lived on in this post war model.
Monobloc casting 73mm bore 110 mm stroke
Single Su Carburretter (twin SU £10 extra)
Clutch : single plate
Brakes : bendix cowdrey
Suspension : Semi-elliptic springs front underslung springs rear. Luvax shock absobers
Dunlop wire wheels with 5.50 x 17 in tyres