Autoblog and Yahoo may earn commission from links in this article.This 2015 Bentley Flying Spur W12 is a low-mileage example of Bentley's twin-turbo twelve-cylinder super-sedan, a hand-built British flagship that pairs limousine luxury with 200-mph capability, here optioned with the $13,000 Mulliner Driving Specification and finished in elegant Dark Sapphire over Saffron. With 16,000 miles and a strong options list, it delivers enormous luxury for a fraction of its original price. A weak battery and aged tires flagged in the inspection report are the diligence items, both straightforward but worth understanding.2015 Bentley Flying Spur W12Bring a TrailerWhat it's worth right nowThe Flying Spur W12 is a heavily depreciating ultra-luxury sedan, so mainstream data is the right guide. This car stickered at $249,450 as optioned, with the base W12 around $218,525, and Kelley Blue Book now puts a 2015 Flying Spur's fair purchase price around $56,400, with used W12 examples generally trading from roughly $38,000 to $61,000 depending on mileage, specification, and condition. That steep depreciation is characteristic of these cars and is precisely what makes a well-kept one appealing to a value-focused buyer.AdvertisementAdvertisementThis example's 16,000 miles are low, and the Mulliner Driving Specification, with its 21-inch wheels and sportier appointments, plus the attractive Dark Sapphire over Saffron color combination, support the higher end of the range. The offsetting items are maintenance-related and disclosed in the August 2026 third-party inspection report: the main battery tests at 24 percent health and the report recommends replacing the auxiliary battery, and the Pirelli tires date from 2014, making them over a decade old.2015 Bentley Flying Spur W12Bring a TrailerGiven the low mileage and strong specification against the segment's depreciation and the disclosed maintenance needs, I would call fair value roughly $45,000 to $60,000. The current $35,000 bid with six bids and five days remaining is below that and climbing, and where it lands will depend on how bidders weigh the low mileage and spec against the ownership-cost realities of an out-of-warranty W12 Bentley.Condition and detailsThe specification is genuinely luxurious. This Flying Spur W12 is finished in Dark Sapphire, a distinctive deep blue, over Saffron leather with Mulliner quilted inserts and burl walnut trim, riding on the Mulliner Driving Specification's polished 21-inch wheels, with self-leveling air suspension. The cabin offers heated, ventilated, and massaging front and rear seats, four-zone climate, a Breitling clock, rear picnic tables, power rear sunshades, and acoustic glass. The twin-turbo 6.0-liter W12 makes 616 horsepower through the eight-speed automatic and all-wheel drive. The listing includes an August 2026 third-party inspection report, and the oil was changed in May 2026.2015 Bentley Flying Spur W12Bring a TrailerFor condition, this is a low-mileage, two-owner car with a clean Carfax, and the inclusion of a third-party inspection report is a welcome transparency. That report is also the source of the two clear diligence items: the main battery tests at only 24 percent health, and the report recommends replacing the auxiliary battery, while the Pirelli tires carry 2014 date codes, making them roughly eleven years old regardless of tread. As commenters aptly noted, seeing easy maintenance items like the battery and tires left unaddressed on an expensive second- or third-owner car is a caution worth heeding, since it can hint at deferred maintenance elsewhere.2015 Bentley Flying Spur W12Bring a TrailerThe diligence on an out-of-warranty W12 Bentley is significant, as these are extraordinarily complex and expensive to service. Budget immediately for the weak main battery, the recommended auxiliary battery, and a fresh set of tires to replace the decade-old Pirellis, none of which is trivial in cost on this car. More importantly, treat those deferred items as a prompt to investigate the broader maintenance history and have a Bentley or Volkswagen-group specialist inspect the car thoroughly, paying attention to the air suspension a commenter asked about and the W12's known service needs. Confirm both key fobs are present. This is a dealer consignment through a BaT Local Partner with a clean Pennsylvania title.2015 Bentley Flying Spur W12Bring a TrailerAdvertisementAdvertisementThe offerSpecificationDetailMakeBentleyModelFlying Spur W12 (Mulliner)Year2015Mileage16,000EngineTwin-turbocharged 6.0-liter W12Power616 horsepower, 590 lb-ftTransmissionEight-speed automaticDrive typeAll-wheel driveExterior colorDark SapphireInterior colorSaffron leatherCurrent bidUSD $35,000Interested in this car? View the listing here.What makes the Flying Spur W12 uniqueThe Bentley Flying Spur is the four-door expression of Bentley's grand-touring ethos: a hand-built, supremely luxurious sedan that can waft its occupants along in near-silent comfort or, with a prod of the throttle, rocket to 200 mph. The W12 version is defined by its extraordinary engine, a twin-turbocharged 6.0-liter twelve-cylinder making 616 horsepower and delivering effortless, seamless thrust utterly befitting the car's character, an engine configuration essentially unique to the Volkswagen Group's Bentley flagships. Inside, the Flying Spur showcases the hand-finished wood, leather, and metalwork that justify its original price, and the Mulliner Driving Specification adds sportier wheels and detailing for a more purposeful look.2015 Bentley Flying Spur W12Bring a TrailerThat combination of handcrafted luxury, a singular twelve-cylinder powertrain, and genuine supercar pace is what makes the Flying Spur W12 special, and what makes a lightly used one such a compelling amount of car for the money given the steep depreciation. The tradeoff is the flip side of that depreciation: these are complex, expensive cars to maintain out of warranty, so the deferred battery and tires on this example are a reminder that the smart buy is a well-maintained car bought with a realistic upkeep budget. For a buyer who understands that math, a low-mileage W12 in an elegant specification delivers an experience few cars at the price can match.My takeThis is a low-mileage, handsomely specified Flying Spur W12 in a distinctive color with the desirable Mulliner spec, and it offers a tremendous amount of hand-built luxury for a fraction of its original cost. My fair-value call is $45,000 to $60,000, reflecting the low mileage and strong specification against the segment's depreciation and the disclosed maintenance needs. I would be comfortable in that range for a car whose broader service history checks out beyond the flagged items.AdvertisementAdvertisementThe buying advice is about the deferred maintenance and the running costs. Budget immediately for the weak main battery, the recommended auxiliary battery, and a set of tires to replace the 2014-dated Pirellis, and treat those neglected easy items, as commenters rightly did, as a prompt to scrutinize the wider maintenance history. Get a Bentley-specialist inspection covering the air suspension and the W12's known service needs, and confirm both key fobs. Go in with a realistic upkeep budget for an out-of-warranty Bentley. Handle those, and the current $35,000 bid is a reasonable entry into a genuinely luxurious twelve-cylinder flagship.Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission.This story was originally published by Autoblog on Aug 17, 2026, where it first appeared in the Car Buying section. Add Autoblog as a Preferred Source by clicking here.