Car auction site Collecting Cars is currently hosting bidding for what it claims is "one of the rarest modern Bentleys ever built": a 2016 Mulsanne Grand Limousine.

Produced by Bentley’s Mulliner division for a customer in the United Arab Emirates, it was originally developed as a one-off commission, but later offered to 11 others in the region; each car was finished to a unique specification. This one is in a very bold Rubino Red over Light Gazelle.
With a 1m wheelbase extension and 79mm taller roofline, the Grand Limousine features six individual seats, each with its own climate zone, and a rear cabin trimmed in Twine hide with Burr Walnut veneers. The front section is finished in Fireglow leather.
The rear compartment has an electrochromic privacy partition with adjustable opacity, twin drinks chillers with Bentley crystal tumblers and flutes, fold-out tray tables, massage functions, an intercom system, and a trio of classic gauges displaying time, exterior temperature and GMT.

Overhead, a quilted headliner is split by a wood-veneered central spine housing lighting and controls — a design touch found only on this variant.
Powered by Bentley’s 6.75-litre twin-turbocharged V8, the rear-wheel drive limo has an eight-speed automatic gearbox. It's covered 7136km, and comes with an extended Bentley warranty, valid until March 2027. Not bad for a 9-year-old car.

This Grand Limousine rides on factory 21-inch wheels with Dunlop tyres and is equipped with a Naim for Bentley sound system, multi-zone climate control, cruise control, front and rear parking sensors, a rotating central display and an electrically operated boot lid.
Accompanying the car are the original owner’s book pack, trickle charger, two Bentley umbrellas and "multiple sets" of wireless headphones, says Collecting Cars.

Bidding is being shown in US dollars. Collecting Cars says the Bentley is rumoured to have cost "seven figures" when new; at the time of writing, bidding it was up to $370,000 (NZ$616,000).
Tempted? You'll have to be quick; bidding closes in the early hours of June 17, NZ-time.