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The Rolls-Royce Silver Cloud is an 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 J. 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 is very similar, apart from its radiator grille. ==Silver Cloud I== Construction was 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-based alloy was used for doors, bonnet/hood and boot/trunk lid. The chassis was a simple steel box section, welded together and very rigid. The car was long, wide, and massed 1.95 tonnes. The engine was a 155 hp / 4000 rpm 4.9 L 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 turning circle was .〔 Brakes were hydraulic and assisted by the Rolls-Royce mechanical servo with drums and suspension was independent coils at the front and semi-elliptic springs at the rear. Twin brake master cylinders were incorporated from April 1956.〔 Power steering and air conditioning became available as options in 1956. A long-wheelbase version lengthened by was also made available in September 1957, outwardly very similar to the existing car but offering improved leg space for rear-seat passengers.〔 The British ''Motor'' magazine tested a standard-wheelbase factory-bodied Series I in 1956 recording a top speed of and acceleration from 0- in 13.5 seconds and a fuel consumption of . The test car cost £5078 including taxes. File:Rolls Royce Silver Cloud Series I 4857cc January 1959.JPG|Rolls Royce Silver Cloud I Saloon File:Bonhams - The Paris Sale 2012 - Rolls-Royce Silver Cloud Drophead Coupé - 1957 - 004.jpg|1957 Rolls-Royce Silver Cloud I Drophead Coupé 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rolls-Royce Silver Cloud」の詳細全文を読む スポンサード リンク
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