Alvis Speed 20

Standard bodies were a four-door sports saloon from coachbuilders Charlesworth, a four-seater sports coupé or four-door tourer by Cross & Ellis, but some cars were supplied in chassis form and carried bodies by coachbuilders such as Vanden Plas.

It used a single plate clutch, central change lever, open tubular propeller shaft with metal joints (arranged in a straight line), and a spiral bevel fully floating back axle.

The SB launched at the October 1933 London Motor Show had a new cruciform braced chassis, slightly longer at 124 in (3,150 mm), with independent front suspension using a single transverse leaf spring with a long solid anchorage in the centre.

[5] The Times motoring correspondent tested and after describing its technical features in detail reviewed the car.

The four-seater saloon was described as "distinctly fast in acceleration and speed" with a comfortable body such that a passer-by looks twice at it.

Providing on the road such rapid acceleration and high rates the engine ran fairly quietly and with smoothness yet displaying exuberant spirits.

[3] The final SD version for 1936 was similar to the SC but had a larger fuel tank and slightly wider bodywork.

1932 Sports tourer
1933 Sports tourer
Speed 20 standard 4-door sports saloon by Charlesworth
1934 Speed 20 SB "flat-back" two-door saloon by Vanden Plas
1934 Speed 20 SC fixed head coupé by Vanden Plas
1935 Speed 20 SC sports saloon by Mayfair
Speed 20 SC instrument panel
Speed 20 SC
1936 Speed 20 SD 4-dr sports saloon
by Lancefield
1936 Speed 20 with open two-seater body
1936 3½-litre drophead coupé
by Charlesworth