[1] It was the first car to feature a retractable Spirit of Ecstasy: the spring-loaded mascot sank into the radiator shell if dislodged from its position.

It formed the basis for the Flying Spur, Silver Dawn, Touring Limousine, Park Ward, and Bentley Mulsanne/Eight series.

Originally retaining the three-speed Turbo Hydramatic GM400 transmission from earlier Spirits/Spurs,[4] a four-speed unit (the GM 4L80E) was introduced in the winter of 1991.

[3] The size of the petrol tank was also increased, up to 107 L (24 imp gal), meaning that the car's range was now in excess of 310 miles (500 km).

[5] Exterior and interior changes were minimal, with a considerably smaller steering wheel and two additional ventilation outlets added to the fascia mildly modernising the look up front.

A marketing decision was made that the cars should not get an official "series IV" designation because the number four is a homonym for death in some Far Eastern languages.

[1] Major changes included the introduction of a Garrett turbocharger on all models and the replacement of the previous Bosch engine management systems with one by Zytec.

The Rolls-Royce Park Ward Limousine is a limited edition Silver Spur/Spirit mark IV with a 610-millimetre (24 in) extended wheelbase and a 51 mm (2 in) taller roof.

Standard equipment on this model included a bar cabinet with crystal decanters and goblets, intercom, an electrically operated division and a backseat sunroof.

Rolls-Royce touring limousines were built to a Robert Jankel design[7] in cooperation with coach builder Mulliner Park Ward, London.