Rolls-Royce Spectre

360 Magazine

ROLLS-ROYCE SPECTRE: WINTER TESTING

A new Rolls-Royce motor car always begins its life in winter. Temperatures at the Bespoke facility used by the marque, located in Arjeplog, Sweden, just 55km from the arctic circle, drop to -26 degrees centigrade and are further cooled to -40 degrees centigrade.

There are several reasons for subjecting the marque’s products to such extremes. When the prototypes are built, engineers perform very basic tests in extreme conditions to ensure that each system is operational and functions at a basic level in cold weather. This test is combined with the beginnings of the refinement process – the first ‘lessons’ in a finishing school that will form the foundations of a motor car worthy of the marque.

ROLLS-ROYCE SPECTRE: ROLLS-ROYCE 3.0

Rolls-Royce 3.0 represents the beginning of the marque’s bold electric future. The term ‘Rolls-Royce 3.0’ is a reference to the brand’s progress during its renaissance, which began in Goodwood, West Sussex on 1st January 2003. The first Goodwood Rolls-Royce was Phantom, and it was underpinned by its own Bespoke architecture. This was Rolls-Royce 1.0. Following this, a new, highly flexible all-aluminium spaceframe architecture was conceived that could be adapted for multiple applications, including the current Phantom, Cullinan, Ghost and Coachbuild projects. This was Rolls-Royce 2.0. Rolls-Royce 3.0 is the integration of a fully electric power train and Decentralised Intelligence into the marque’s architecture.

In component terms, the simplicity of the car has increased significantly. However, the requirement for engineering Spectre – of sending this uneducated car to Rolls-Royce finishing school – is unparalleled.The definition of engineering has changed. Historically, engineering a Rolls-Royce has taken place in workshops. Spectre sees this pivot into the digital space.

Spectre is the most connected Rolls-Royce ever and each component within it is more intelligent than in any previous Rolls-Royce. It features 141,200 sender-receiver relations and has more than 1,000 functions with more than 25,000 sub functions. By comparison, Phantom has 51,000 sender-receiver relations, 456 functions and 647 sub functions.

The dramatically increased intelligence of Spectre’s electronic and electric powertrain architecture enables a free and direct exchange of detailed information between these 1,000+ functions with no centralized processing. While this has required engineers to increase the length of cabling from around 2 kilometers in existing Rolls-Royce products to 7 kilometers in Spectre, and to write more than 25 times more algorithms, it offers a significant step forward for the brand. A dedicated control can be created for each set of functions which enables unprecedented levels of detail and refinement, allowing for what Rolls-Royce chassis specialists are already calling “Rolls-Royce in high definition”.

ROLLS-ROYCE SPECTRE: ARCHITECTURE

In creating a design for Spectre, a generously proportioned, highly emotional body style was selected. This could only be enabled with the marque’s all-aluminium spaceframe architecture. Indeed, the scale is so far beyond other contemporary coupés that it orary product that occupies this space – Phantom Coupé. The marque’s designers consider Spectre to be Phantom Coupé’s spiritual successor.  

Indeed, when it came to styling Spectre, the marque’s designers considered the dimensions and emotionality of Phantom Coupé, and other grand coupés from Rolls-Royce’s past. Not only did they create this emotion with Spectre’s fastback silhouette and size, but they also carried forward a key design feature of Phantom Coupé: the iconic split headlights, a design tenet that Rolls-Royce has owned for many decades.

This design typology was selected in consultation with the marque’s clients, who found the idea of a Phantom-scale Electric Super Coupé highly appealing. However, the decision to pursue this aesthetic was also strategic. Leaders within the brand wanted the first fully electric Rolls-Royce to be highly emotional, something that shows that electric powertrain technology can deliver on the promise of such grand, seductive and compelling styling. While Spectre represents an historical moment for Rolls-Royce, it is also an historic moment for electrification – the technology is now able to contain the Rolls-Royce experience.

The flexibility of Rolls-Royce’s proprietary architecture, which is reserved for the marque’s exclusive use and does not underpin mass market cars, enables the exterior design to carry the scale required to create the presence of an authentic Rolls-Royce. This is plain to see in Spectre’s wheel size – it will be the first coupé equipped with 23-inch wheels since 1926.

The flexibility of the marque’s architecture also enabled designers to dramatize the coupé experience. By placing the floor halfway between the sill structures rather than on top or underneath the sills, there is a highly aerodynamic channel for the battery, providing a perfectly smooth underfloor profile. Likewise, this creates a low seating position and enveloping cabin experience.

By moving the bulkhead location, designers and engineers have also been able to deepen the dashboard location to truly cocoon passengers. This is amplified with a dramatically low windscreen rake and incredibly efficient airflow profile. This, along with other intelligent design solutions such as an aerodynamically tuned Spirit of Ecstasy mascot, contributes to a drag coefficient (cd) of just 0.26 in early prototypes.

The battery location, which is enabled by the marque’s architecture, unlocks another benefit that is commensurate with the Rolls-Royce experience. By creating wiring and piping channels between the floor of the car and roof of the battery, engineers have created a secondary function for the battery – 700kg of sound deadening.

ROLLS-ROYCE SPECTRE: THE EXTRAORDINARY UNDERTAKING CONTINUES

With the winter testing phase completed, Spectre will continue its global testing programme. The Electric Super Coupé still has to complete nearly two million kilometres before the marque’s engineers will consider this undertaking complete prior to first customer deliveries in the fourth quarter of 2023. 

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