£132.3k (Est: £100k - £150k)
1939 Bentley 4¼-Litre MX Sedanca Coupé
Bonhams • UK • 13 Sept 2025
Market Position:
Highest 30% of Past Sales
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£132,250 (Est: £100,000 - £150,000)
1939 Bentley 4¼-Litre MX Sedanca Coupé
UK • 13 Sept 2025
Vehicle Details
AI Listing Summary
This 1939 Bentley 4¼-Litre MX Sedanca Coupé, with coachwork by Thrupp & Maberly, is a highly desirable M-series overdrive model. Restored to concours standard by Fiennes Restorations, it retains its original engine, gearbox, and registration, and is believed to feature unique coachwork, making it a standout classic.
Condition
9
The car was restored to concours standard by Fiennes Restorations between 2002 and 2004. Since then, it has been kept in a heated and dehumidified garage and has covered circa 10,000 miles. The listing mentions that even 20 years after restoration, it still looks beautiful, and the vendor has won trophies at concours events. This indicates that the car is in near-perfect condition with minor signs of use.
/ 10
10,350 miles
B35MX
1939
Auction
Manual
FXM 600
United Kingdom
£132.3k (Est: £100k - £150k)
1939 Bentley 4¼-Litre MX Sedanca Coupé
Bonhams • UK • 13 Sept 2025
Market Position:
Highest 30% of Past Sales
Track live values and receive listing alerts
Description
• The ultimate expression of pre-war motoring refinement • Desirable M-series overdrive model • Original engine, gearbox and registration • Believed unique coachwork • Restored to concours standard by Fiennes Restorations (bills available) concours condition throughout • Extensive history file Introduced in 1936, the 4¼-Litre Bentley chassis, developed from the preceding 3½-Litre, was the finest that the wealthy sporting motorist could aspire to.
Although Rolls-Royce's acquisition of Bentley Motors in 1931 had robbed the latter of its independence, it did at least ensure the survival of the Bentley name.
Launched in 1933, the first of what would become known as the 'Derby' Bentleys continued the marque's sporting associations, but in a manner even more refined than before.
Even W O Bentley himself acknowledged that the 3½-Litre model was the finest ever to bear his name.
Based on the contemporary Rolls-Royce 20/25, the 3½-Litre Bentley was slightly shorter in the wheelbase at 10' 6...
Price Analysis vs Other 4.25 Litres
£17,688
Lowest Price (Since 2020)
£64,608
Median Price (Since 2020)
£578,299
Highest Price (Since 2020)
World Record
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Highest 30% of Past Sales
Compared to previous sales, the sale price placed this vehicle in the highest 30% of past sales for the 4.25 Litre.
Lowest Price
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Rare Sale
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Previous 4.25 Litre Sales
MOT Information
Expired
Expired on 21st May 2018
Latest MOT mileage:
99,246 miles
MOT History
Passed
On 22nd May 2017, 99,246 miles
Passed
On 13th Aug 2012, 96,414 miles
Passed
On 1st Sept 2011, 95,141 miles
There were 3 defects noted.
Advisory:
- Offside Ball joint has slight play (2.2.B.1f)
- Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
User Entered:
- Oil leak
Passed
On 13th Dec 2010, 94,123 miles
There were 3 defects noted.
Advisory:
- Ball joint has slight play (2.2.B.1f)
- Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
User Entered:
- Oil leak
MOT Mileage Trend
Gallery

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