Rolls-Royce Silver Cloud I from 1957, 4887 cc, max. speed 171 km/h

The Rolls-Royce Silver Cloud is a luxury automobile produced by Rolls-Royce Limited from April 1955 to March 1966. It was the core model of the Rolls-Royce range during that period. The Silver Cloud replaced the Silver Dawn and was, in turn, replaced by the Silver Shadow.

The John P. Blatchley design was a major change from the pre-war models and the highly derivative Silver Dawn. As part of a range rationalisation, the Bentley S1 was made essentially identical, apart from its radiator grille and badging.

Construction is body-on-frame, which permitted special bodied versions, though the overwhelming majority were built with the standard Pressed Steel Company manufactured steel body shell. A light-weight aluminium alloy was used for doors, bonnet/hood and boot/trunk lid. The chassis is a simple steel box section, welded together and very rigid.

The car is 5.38 m (212 in) long, 1.90 m (75 in) wide, and weighs 1.95 tonnes. The engine is a 155 hp / 4000 rpm 4.9 L (300 cu in) six-cylinder unit with inlet over exhaust valves: twin SU carburettors were added in September 1957.

The standard transmission was a four-speed automatic, the General Motors designed Hydramatic transmission.

The turning circle was 41 feet 8 inches (12.70 m).

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