2017 Rolls-Royce Sweptail

Rolls-Royce Sweptail revived modern factory coachbuilding through a single patron’s two-seat grand tourer. Presented in 2017, its long tapering tail, sweeping glass roof and individually arranged cabin made the body itself the commission, moving beyond ordinary colour and trim personalisation.

A commission shaped around one patron

The factory account describes a client approaching Rolls-Royce with a vision drawing on historic coachbuilt cars and yachts. The result was developed as a particular two-seat vehicle rather than a run of standard-bodied coupes. That is the essential boundary for this profile. It should not be presented as an independent aftermarket conversion, and another Phantom with custom paint or interior trim does not acquire the same Coachbuild identity.

Rolls-Royce: Sweptail, one customer’s coachbuilt dream

The tail changes the whole proportion

Sweptail’s narrowing rear body is the organising idea behind its silhouette. The long roof sweep and tapering plan view make the rear more than an attached styling flourish. As design interpretation, they draw attention away from an ordinary rear-seat package and towards the car as a unified two-seat touring object. That reading is visible in photographs, while the original design process and construction remain matters for the factory commission record.

Glazing became a structural part of the experience

The large panoramic glass area makes the roof a central element of both exterior and interior composition. It visually connects the cabin with the rear body and changes the sense of enclosure compared with a normal fixed-head Phantom. A collector’s documentation should therefore include the glass, seals, mounting details and any later repairs. Those features are specific to the coachbuilt form and cannot be assumed to share ordinary coupe replacement procedures or availability.

Rolls-Royce: Sweptail, one customer’s coachbuilt dream

A cabin organised for two

The manufacturer’s account describes a purpose-designed rear area in place of conventional rear seating, together with storage and crafted interior details tailored to the commission. That arrangement explains why Sweptail is more than a new exterior over an unchanged four-seat interior. The body and cabin answer the same brief. For an individual condition record, document removable accessories and specialised compartments as carefully as the leather and veneer, since completeness is part of understanding the original design.

Rolls-Royce: the coachbuilding revival

Keep the one-off’s engineering and authorship clear

The car belongs to the Goodwood Phantom engineering era, but its coachbuilt body and patron-specific arrangement justify its separate named identity. Authentication should follow the factory commission, chassis and presentation history. Later cars inspired by its appearance do not become further Sweptails. Equally, repeated appearances of the same vehicle should not be counted as additional builds. A photographic record should identify the real car and the date of each configuration it shows.

Specifications and identity reference

Rarity and production scope

Sweptail is a documented single-patron, one-off factory Coachbuild commission. It is not a numbered run of standard Phantom Coupes or an independent modern conversion. It remains related to its underlying engineering family without creating additional production through repeated exhibitions. This package records it as an Archive one-off and does not repeat speculative transaction-price claims or invent an undisclosed build-chassis census.

This is an Archive identity. The experimental or individually named car is not added as extra production on top of its underlying family. Repeated exhibition appearances do not establish additional chassis; the specific scope above governs the count.

What the photograph represents

The one-off Rolls-Royce Sweptail, photographed in 2018. Its coachbuilt two-seat body and glazing distinguish it from the standard Phantom Coupe on which its engineering was based.

Related Rolls-Royce heritage profiles

• 1925 Rolls-Royce Phantom I UK
• 2006 Rolls-Royce 101EX

Frequently asked questions

Is Sweptail an aftermarket conversion?

No. The manufacturer documents it as a factory Coachbuild commission developed for one patron.

Does it have the standard coupe’s rear seating?

No. The commission was organised as a two-seat grand tourer with a specially designed rear cabin area.

What is the production-count boundary for this profile?

Sweptail is a documented single-patron, one-off factory Coachbuild commission. It is not a numbered run of standard Phantom Coupes or an independent modern conversion. It remains related to its underlying engineering family without creating additional production through repeated exhibitions. This package records it as an Archive one-off and does not repeat speculative transaction-price claims or invent an undisclosed build-chassis census.

Sources and further reading

1. Rolls-Royce: Sweptail, one customer’s coachbuilt dream
2. Rolls-Royce: the coachbuilding revival

Research checked 18 October 2026. Linked factory announcements, museum records and attributed specialist research support the specifically identified claims. Photographic descriptions identify the illustrated subject. Design analysis and suggested authentication steps are editorial interpretation.