Currently reading: Second Rolls Royce Drop Tail is a celebration of gemstones
Second of four versions of £20m-plus two-seat roadster takes inspiration from gemstones, flowers and sand dunes

Rolls-Royce has revealed the second of four customer-commissioned versions of its new Drop Tail roadster - a striking, ultra-luxurious two-seater said to cost more than £20 million apiece.

The new commission, called Amethyst, follows in the footsteps of La Rose Noire – the first of the Drop Tails – which was revealed in Monterey last week. In total, the Goodwood-based firm will build just four highly bespoke cars, having worked intensively with the buyers over the past four years to create the most exclusive proposition possible.

The Amethyst has been named by its anonymous owner, who has grown a gemstone boutique into a multinational business.

The car’s purple and silver colour scheme – named Globe Amaranth and inspired by a flower that blooms near the customer’s home – has been strikingly enhanced by aluminium flakes. Unusually, it has also been used for the wheels as well as the bodywork.

Rolls royce amethyst drop tail front three quarter static

Meanwhile, the Amethyst’s grille – which on the Drop Tail features curved bars that end at chamfered rather than right-angled corners – gets a bespoke finish which, according to Rolls-Royce, took 50 hours to complete.

Below the grille, the lower air vent features 202 stainless steel ‘ingots’ finished in the same colour as the bodywork. At the foot of the Spirit of Ecstasy mascot is a rounded amethyst gemstone, in reference to the customer’s business.

Each Drop Tail represents the “absolute pinnacle” of Rolls-Royce’s in-house coachbuilding capabilities. The creations build on 2017’s Sweptail and 2021’s Boat Tail as the latest in a series of ultra-exclusive, multi-million-pound specials.

Rather than being simply a reworking of the now-retired Dawn convertible, the Drop Tail commissions are underpinned by an all-new monocoque chassis constructed from steel, aluminium and carbonfibre, in a first for the Coachbuild division. For the second Drop Tail commission, this carbonfibre has been finished with a layer of Amethyst-tinted lacquer, which is hidden until the car is “closely scrutinised”.

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Rolls royce amethyst drop tail rear three quarter

The removable roof panel is also carbonfibre, which makes it easier for the driver to remove and replace it. It also features a large section of electrochromic glass, which, in the Amethyst, has a subtle purple tint when deactivated and, when switched on, is translucent with a brown hue to match the interior leather.

Aerodynamics played an important role in shaping the Drop Tail. Rolls-Royce said the car’s swooping rear end is “not ordinarily conducive to producing downforce”, which is to say the car was deemed insufficiently stable at high speeds without additional assistance.

Rather than mount a spoiler, the firm tweaked the design of the rear deck to produce the necessary downforce without compromising the aesthetics – a process that took two years and 20 iterations.

The Amethyst’s deck, according to Rolls-Royce, is “the most extensive wooden surface area in [the brand’s] history”. It is finished in Calamander Light open-pore wood trim, which matches the tone of the car’s secondary brown leather – an effect that apparently took six months to achieve. This was done using a completely new veneering process to make it look like one continuous piece of wood.

Rolls royce amethyst drop tail rear birds eye view

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Each component in the car was stress-tested over 8000 hours at temperatures ranging from 80deg C to -30deg C.

All Drop Tails draw power from the familiar twin-turbocharged 6.75-litre V12 in a bespoke state of tune that boosts power by 30bhp over the Phantom but which cuts torque by 44lb ft, giving total outputs of 593bhp and 620lb ft. Rolls-Royce has not revealed any performance figures, but no doubt the Drop Tail will be a close match for the V12-engined Dawn, with a sub-5.0sec 0-62mph time and a top speed capped at 155mph.

Rolls-Royce design director Anders Warming told Autocar the V12 was used rather than an electric powertrain because the marque is “celebrating” the roadster “and the V12 is a powertrain we will be celebrating for the next couple of years”. Asked when the firm will be ready to launch an electric coachbuilt special based on the Spectre, he said: “Time will tell.”

At 5.3m long and 2.0m wide, the Drop Tail is smaller than the Spectre, with its completely bespoke silhouette defined by a low coupé-like roofline inspired by ‘chop-top’ hot rods.

Rolls royce drop tail la rose noir rear quarter

Inside, the brief was to create an “intimate” environment, with woven leather floor mats and switchgear that is obscured where possible. Only three buttons are left in open view, and they are topped by gems in the Amethyst edition at the request of the customer. On all cars, the powered centre console can be moved to cover the infotainment control dial.

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A vast wooden panel cocoons the seats, intended to reinforce the “romantic” atmosphere. It was built by a single craftsman – a former Rolls-Royce apprentice – who is said to have worked on the panel over nine months, in silence, for no more than one hour per day, to ensure complete focus on the task.

This was the “most complicated, involved and prohibitive work of craft ever produced” at its Goodwood factory, said Coachbuild design boss Alex Innes.

The La Rose Noire commission comes with a bespoke watch from Audemars Piguet which also functions as the car’s clock, mounted to the dashboard using a clasp mechanism. The Amethyst swaps this for a timepiece specified by the customer from Vacheron Constantin. It’s handmade in Geneva and called ‘Les Cabinotiers Armillary Tourbillon’, and it has been designed to match the interior colour.

Both timepieces posed a significant challenge, said Innes: “They had to be crash tested, both physically and in virtual simulations, to ensure that the timepiece would remain in situ were the car to experience any sort of abstract movements in a crash situation. [We went to] lengths that nobody would normally go to, were they not instigated by the specific wishes of a commissioning client.”

Rolls royce drop tail la rose noir interior

La Rose Noire was commissioned by a husband and wife who are the heads of a “prominent international family”. It is inspired by their relationship, with ‘True Love Red’ paint paired with a darker shade dubbed ‘Mystery’.

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The interior’s wooden panel – made from black sycamore in reference to the car’s French provenance – is supposed to represent falling rose petals. “Even the leather was worked to include a sheen and a texture to its colour that would mimic the richness of the rose petals themselves,” said Innes.

Rolls-Royce does not give prices for its coachbuilt specials, but each of the four Drop Tails is understood to have cost their respective owners more than the £20 million Boat Tail.

Jonathan Bryce

Jonathan Bryce
Title: Editorial Apprentice

Jonathan is an editorial apprentice working with Autocar. He has held this position since September 2022, having graduated from the University of Glasgow with a degree in Geography and Business & Management before moving to London to pursue a career in motoring journalism. 

His role at work involves writing news stories, updating and uploading articles for the Autocar website and making sure they are optimised for search engines, helping with social media and building his experience overall.

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Marc 25 August 2023
Odd, the first I thought of when seeing this sand nigger wagon was sand dunes.
jason_recliner 26 August 2023
Disgusting. Do you take like that around your friends? Boss? Kids? Fucking trash.
manicm 25 August 2023

You really need to fix your picture gallery Autocar.

scrap 25 August 2023

The 2nd is more tastefully specified than the 1st, at least.

Its all a bit Emperor's New Clothes though.