Bentley Mulliner Reveals Batur Convertible #4: A Masterpiece of Bespoke Craftsmanship

SME News Balkan. Bentley Mulliner has completed the most highly curated Batur Convertible to date, marking another milestone in the modern era of coachbuilt luxury. Known as Batur Convertible #4, the one-of-one commission joins an exceptional private collection that already includes a Blower Continuation Series, Speed Six Continuation Series, and the Bacalar—Bentley’s first modern coachbuilt model.

Commissioned by automotive enthusiast and collector Sonia Breslow, the Batur Convertible #4 reflects a deeply personal design philosophy centred on cohesion, craftsmanship, and permanence. Every element has been individually specified, demonstrating Mulliner’s ability to translate a client’s vision into a fully bespoke grand tourer.

“As long as I can remember, I’ve been passionate about cars. When I have a car like this Batur, I don’t plan on selling it in my lifetime—it’s my forever car,” says Breslow. “I love the detail: choosing the colours, refining every shade and feature, and creating something unlike anything else.”

The exterior specification embraces a refined luxury aesthetic, defined by a tri-tone colour scheme using the client’s own commissioned shades. A 6 mm gloss-silver fine line accentuates the Batur’s signature endless bonnet design, while the upper body colour, Breslow Blue, has been precisely colour-matched to the convertible roof canvas. This marks Bentley’s first bespoke coloured roof, which, when stowed, reveals an Airbridge finished in the same exclusive hue.

Further exterior detailing includes a Midnight Breslow Blue bonnet pinstripe, colour-matched accents on the wheels and wing mirrors, polished titanium exhaust finishers, and bright silver grilles—each contributing to a cohesive and elegant visual identity.

Inside, the cabin showcases Mulliner’s most intimate levels of personalisation. An animated welcome lamp projects Sonia Breslow’s handwritten signature onto the ground, formed using 415,800 microscopic mirrors that sculpt the light into a uniquely personal display.

The interior palette contrasts beautifully with the exterior, combining warm autumnal tones—tans, caramel hues, and subtle light-blue accents—while drawing the bespoke Breslow Blue from the Airbridge into the cabin itself. Contrast stitching flows throughout the interior, from the tonneau and seats to the headrests and instrument panel. Subtle references to Mount Batur, the volcanic inspiration behind the car’s name, are woven into the deep-pile floor mats.

Heritage and innovation meet in the cabin fascia, finished in a bright aluminium engine-spin pattern inspired by early Bentleys. The Bentley Rotating Display features bespoke coloured gauge faces that complement the satin blue Bentley clock. Marking a technological first, Batur Convertible #4 introduces Bentley’s first application of 3D-printed platinum, used for the steering wheel’s top-dead-centre marker and each organ stop.

Despite its bespoke craftsmanship, the Batur Convertible retains Bentley’s most powerful production engine ever offered: a hand-assembled 6.0-litre twin-turbocharged W12, producing 740 bhp, ensuring performance befitting Mulliner’s flagship coachbuilt series.

The final specification of Batur Convertible #4 stands as a masterclass in collaboration—an expression of power, elegance, and individuality—set to take its place alongside the owner’s other iconic Mulliner commissions.