Classic Car Classifieds > MG MG A Twin Cam

The MGA is a sports car produced by MG division of the British Motor Corporation from 1955 to 1962.

The MGA replaced the MG TF 1500 Midget and represented a complete styling break from MG's earlier sports cars. Announced on 26 September 1955 the car was officially launched at the Frankfurt Motor Show. A total of 101,081 units were sold through the end of production in July 1962, the vast majority of which were exported. Only 5869 cars were sold on the home market, the highest export percentage of any British car. It was replaced by the MGB.

A high-performance Twin-Cam model was added for 1958. It used a high-compression (9.9:1 later 8.3:1) DOHC aluminium cylinder head version of the B-Series engine producing 108 hp (81 kW; 109 PS). Due to detonation problems, a 100 bhp (75 kW; 101 PS) low-compression version was introduced later.[6] Four-wheel disc brakes by Dunlop were fitted, along with Dunlop peg drive knock-off steel wheels similar to wheels used on racing Jaguars, unique to the Twin-Cam. These wheels and chassis upgrades were used on a small number of "DeLuxe MGA 1600 Roadsters" built after Twin-Cam production came to a halt. Aside from the wheels, the only outside identifier was a "Twin-Cam" logo near the vent aside the bonnet.

Steel box-section chassis, steel body.
Engine : iron-block, alloy-head dohc, twin SU carbs
Transmission : four-speed manual, rear wheel drive.
Suspension : front double wishbones, coil springs. Rear live axle, semi-elliptic springs, lever arm dampers front and rear.
Steering : rack and pinion
Brakes : discs all round.