Makes › Bentley United Kingdom › Grand Convertible · Rare specification Ultra Rare

Bentley
Grand Convertible

Mulliner-built open version of the Mulsanne, limited to 19 units, based on the Mulsanne Speed.

Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.

IDENTIFICATION CARD · BENTLEY GRAND CONVERTIBLE
No licensed photograph yet. Photographs are published only when their licence permits it.
19BuiltIndependently researched
0Chassis documentedin this archive
?SurvivingNot yet verified
Contents
  1. 01Overview
  2. 02Production & history
  3. 03Specifications
  4. 04Colours & options
  5. 05Individual cars
  6. 06Reference

01Overview

At a glance

Built
19 Built
Years
Not yet verified
Engine
6,750 cc / 6.75 LFactory: 6.75 L
Power
395 kW / 537 PSFactory: 530 hp · converted
Top speed
Not yet verified
Body
Not yet verified
Designer
Not yet verified
In this archive
Not yet verified
Surviving
Not yet verified

Sources and any conflicting figures are in the sections below.

Why it matters

Bentley first showed the Grand Convertible as a concept at the 2014 Los Angeles Auto Show and then decided to build it in very small numbers. It is an open-top version of the Mulsanne Speed sedan. The reporting notes that the Mulsanne body was already stiff enough that the conversion needed little extra structure.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Model rarityNot yet assessed
Specification rarityUltra Rare 19 · Built1
Colour rarityNot yet assessed
Individual rarityNot yet assessed
Historical rarityNot yet assessed
Survival rarityNot yet assessed

Each kind of rarity is rated separately and never combined.

02Production & history

Production

Every figure says what it counts.

What is countedFigureBasisStatus
Factory package productionunits to which the Mulliner Grand Convertible is limited 191 Factory production Independently researched

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Mulliner hand-built the Grand Convertible as a production model that started life as a facelifted Mulsanne Speed, losing its roof and being shortened by 10 cm after the doors. It was limited to 19 units as a nod to Bentley's inception in 1919, with deliveries from 2018 and the last cars in 2019. An earlier concept had been based on the pre-facelift Mulsanne.

Variants

How each version differs from the standard Grand Convertible.

No variants documented yet. Have a source? Contribute it.

03Specifications

Technical specifications

Engine

Engine familyNot yet verified
Engine codeNot yet verified
LayoutNot yet verified
Displacement 6,750 cc / 6.75 LFactory: 6.75 L2 Independently researched
BoreNot yet verified
StrokeNot yet verified
Compression ratioNot yet verified
Fuel systemNot yet verified
Power 395 kW / 537 PSFactory: 530 hp · converted2 Independently researched
Power atNot yet verified
Torque 1,100 NmFactory: 811 lb-ft · converted2 Independently researched

Transmission & drivetrain

GearboxNot yet verified
GearsNot yet verified
Driven wheelsNot yet verified

Chassis, body & dimensions

ChassisNot yet verified
Front suspensionNot yet verified
Rear suspensionNot yet verified
BrakesNot yet verified
SteeringNot yet verified
Body constructionNot yet verified
WheelbaseNot yet verified
LengthNot yet verified
WidthNot yet verified
HeightNot yet verified
Front trackNot yet verified
Rear trackNot yet verified
Kerb weightNot yet verified
Dry weightNot yet verified

Performance

Maximum speedNot yet verified
0–100 km/hNot yet verified
Fuel tankNot yet verified

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

04Colours & options

Factory colours & interiors

Original paint and trim, with the number of cars in each where a source gives it.

Not yet documented. Have a source? Contribute it.

Factory options & codes

Codes are shown exactly as written by the manufacturer.

Not yet documented. Have a source? Contribute it.

05Individual cars

Chassis register

Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.

Not yet documented. Have a source? Contribute it.

Competition history

Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

Auction & sale history

Documented public sales of the individual cars. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

See one in person

Museums where an example of this car can be seen.

No example is documented on public display yet. Have a source? Contribute it.

06Reference

Identification guide

How to tell an original from a replica or later conversion.

Being verified against factory or registry sources before it is published. Have a source? Contribute it.

Sources

Each number links to the exact facts it supports.

  1. 1
    Bentley Grand Convertible debut, Motor1 Level C
    • 19 units to which the Mulliner Grand Convertible is limited
    Accessed 2026-11-12
  2. 2
    Bentley Grand Convertible debut Level C Motor1
    • biturbo 6.75-liter V8
    • biturbo 6.75-liter V8 producing 530 horsepower
    • 811 pound-feet (1,100 Newton-meters)
    Accessed 2026-11-13