Rolls-Royce Silver Cloud I
|1955 to 1958|
|Body and chassis|
|Body style||4-door saloon variations provided by coachbuilders were: 2-door convertible 2-door coupé (a small number of 4-door convertibles, hearses and station wagons were also built)|
|Engine||4.9 L I6|
|Wheelbase||123 in (3,124 mm) (short-wheelbase) 127 in (3,226 mm) (long wheelbase, offered for 1957 and 1958 cars)|
|Length||212 in (5,385 mm)|
|Width||74.75 in (1,899 mm)|
|Height||64 in (1,626 mm)|
The chassis was a simple steel box section, welded together and very rigid. Construction retained the traditional split between chassis and body, which facilitated the provision of special bodied versions though in practice the overwhelming majority of cars were delivered with the standard steel body shell, produced by Pressed Steel, and employing light weight aluminium based alloy for the doors, bonnet/hood and boot/trunk lid. The car was 5.38 m (212 in) long, 1.90 m (75 in) 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 41 feet 8 inches (12.70 m).
Brakes were hydraulic and assisted by the Rolls-Royce mechanical servo with 11 in (279 mm) 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 became an option in 1956 along with air conditioning.
A long-wheelbase version, lengthened by 4 in (102 mm), 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 102.9 mph (165.6 km/h) and acceleration from 0-60 mph (97 km/h) in 13.5 seconds and a fuel consumption of 14.5 miles per imperial gallon (19.5 L/100 km; 12.1 mpg-US). The test car cost £5078 including taxes.
- Silver Cloud: 2,238
- Silver Cloud Long Wheelbase: 85
- Silver Cloud special coachbuilder styles (convertibles, coupes, hearses, etc.): 121
- Silver Cloud II: 2,417
- Silver Cloud II Long Wheelbase: 258
- Silver Cloud II coachbuilder styles (convertibles, coupes, hearses, etc.): 107
- Silver Cloud III: 2,044
- Silver Cloud III Long Wheelbase: 206
- Silver Cloud III coachbuilder styles (convertibles, coupes, hearses, etc.): 328