Bentley Mulliner has long occupied a rarefied space where engineering excellence meets personal expression. With the completion of Batur Convertible #4, that space expands again, revealing new creative territory shaped not by trend or convention, but by a singular vision shared between client and craftspeople. Finished at Crewe on 15 January 2026, this is the most highly curated Batur Convertible to date, and the most luxurious Mulliner Coachbuilt commission yet.
For Bentley, Batur Convertible #4 is not simply another specification. It is a rolling manifesto of what true co-creation can achieve when a client is as exacting as the artisans bringing that vision to life.
A Client Who Designs for Forever
The owner of Batur Convertible #4, Sonia Breslow, is no stranger to Bentley’s most exclusive projects. Her collection already includes a Blower Continuation Series, a Speed Six Continuation Series, and the first modern-era coachbuilt Bentley, the Bacalar. Each commission has been approached with a designer’s eye and a collector’s long view.
“This is my forever car,” Breslow explains. “I’m totally into the detail. Picking out the colours, working through every shade, every feature, making them different from everything else.”
That philosophy shapes every surface and shadow of Batur Convertible #4. The result is a car that feels deeply personal yet unmistakably Bentley, balancing heritage, innovation, and individuality with effortless authority.
The First of Four New Possibilities
Batur Convertible #4 introduces four world-first applications for Bentley Mulliner, each born from the client co-creation process.
The exterior showcases Bentley’s first tri-tone paint scheme using the client’s own commissioned colours. These tones flow across the body with deliberate restraint, unified by a 6 mm gloss-silver fine line that accentuates the Batur’s signature ‘endless bonnet’ styling. The effect is subtle yet commanding, drawing the eye along the car’s length in a single, uninterrupted gesture.
For the first time, Bentley has colour-matched a bespoke roof canvas to the exterior paint. Finished in ‘Breslow Blue’, the roof stows away to reveal the Airbridge beneath, finished in the same hue. This continuity of colour transforms a functional element into a moment of theatre, where form and finish align seamlessly.
The third debut is one of the most personal. Upon entry, an animated welcome lamp projects the owner’s handwritten name, rendered through 415,800 microscopic mirrors. The light itself becomes a sculptural object, shaped precisely to the script, and instantly identifiable as hers alone.
Completing the quartet is Bentley’s first application of three-dimensional printed platinum. Crafted in precious metal, the top-dead-centre marker on the steering wheel and each organ stop elevate familiar touchpoints into jewellery-like expressions of innovation and exclusivity.
Exterior: Cohesion in Every Detail
Beyond the headline firsts, the exterior specification reveals a meticulous approach to harmony. The upper ‘Breslow Blue’ contrasts with the deeper ‘Midnight Breslow Blue’ below, echoed in a bonnet pinstripe that reinforces the tri-tone narrative. Accent colours extend to the wheels and wing mirrors, while polished titanium exhaust finishers and bright silver grilles add crisp punctuation to the overall composition.
Nothing feels incidental. Every colour, every material, every finish exists in dialogue with the rest, creating a visual identity that is instantly recognisable yet impossible to replicate.
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Interior: Warmth, Heritage and Hidden Signatures
Inside, Batur Convertible #4 shifts the mood without losing coherence. Warm autumnal tones dominate the cabin, with tans and caramel hues providing a rich counterpoint to the cool blues of the exterior. The bespoke Breslow Blue reappears as an accent, drawing the colour of the Airbridge directly into the interior environment.
Contrast stitching flows from the tonneau through the seats, headrests and instrument panel, reinforcing the sense of crafted continuity. Subtle references reward closer inspection. The outline of Mount Batur, the volcano from which the car takes its name, is discreetly woven into the deep-pile floor mats, a quiet nod to Bentley’s design narrative.
Inspired by early Bentleys, a bright aluminium engine spin finish defines the fascia, pairing heritage technique with contemporary precision. The Bentley Rotating Display features bespoke coloured gauge faces, harmonised with a satin blue Bentley clock face, further reinforcing the bespoke palette.
Then there is the platinum. Cool to the touch and unmistakably precious, the 3D-printed organ stops and steering wheel marker serve as constant reminders that this is a car conceived without compromise.
Power Without Apology
Despite its highly bespoke character, Batur Convertible #4 remains every inch a Bentley grand tourer. Beneath the sculpted bodywork lies the most powerful iteration of the marque’s iconic W12 engine: a hand-assembled 6.0-litre twin-turbocharged unit producing 740 bhp. It delivers performance with the same composure and authority that define the car’s design, ensuring the driving experience matches the craftsmanship on display.
A Living Expression of Mulliner Craft
Batur Convertible #4 stands as a masterclass in collaboration. It demonstrates the breadth of techniques, colours, materials and finishes available through Bentley’s Mulliner division, while proving that true luxury lies in the ability to make something entirely personal.
Soon to join its Mulliner siblings in an extraordinary collection, this Batur Convertible is more than a commission. It is a living expression of trust between client and maker, and a clear statement of what coachbuilding can be when imagination is given absolute freedom.
