1939 Bentley 4¼ Liter

Walter O. Bentley's company was purchased by Rolls-Royce, Ltd in 1931 and moved from Cricklewood, London to Rolls' Derby works. The Bentley cars produced from 1933 through 1939 are known as the 'Derby Bentleys.' The first of these were based on the current-series Rolls-Royce 202/25-horsepower chassis, but was reconfigured to use the 20/25's 2.75-litre engine. The 126-inch bare chassis left the factory to be bodied by outside coachbuilders.

By 1936 the bodies had grown in size and weight and a new power-plant was required. To provide more horsepower, a 4257-cc engine was offered, complete with a higher compression ratio of 6.8:1 compared to 6:1, and the Rolls-Royce Stromberg downdraft single carburetor was replaced by dual SUs. A few of the 3.5-liter cars were converted at the factory to the larger power-plant. With permission from Hispano-Suiza, servo-assisted mechanical brakes were placed on all four corners of the car.

The new 4.25-Litre model had an increase in power over the previous model while retaining the well-proven chassis with servo-assisted braking and faultless gear-change. The introduction of the Hall's Metal bearings would eventually lead to an adoption of an overdrive gearbox and improved lubrication system, improvements which coincided with the introduction of the 'M' series cars in 1939. Approximately 200 examples were produced during 1939, and they were renowned for their reliability, refinement, and long-distance cruising capabilities.


by Daniel Vaughan | Sep 2019

Related Reading : Bentley 4¼ Litre History

Bentley Motors was purchased by Rolls-Royce in 1931. One of the first of the Bentley vehicles produced after this merge was the 1933 3-12 Liter, a vehicle similar to the Rolls Royce 2025. Bentley automobiles personified racing and the 3 12 Liter vehicle followed this tradition. It had a more powerful engine than its 2025 counterpart. This had been achieved by adding a second carburetor and modification....
Continue Reading >>

1939 Vehicle Profiles

1939 Bentley 4¼ Liter vehicle information

Tourer
Coachwork: Vanden Plas

Chassis Num: B91 MX

In 1933, the first Rolls-Royce built Bentley 3.5-liter appeared, produced in Derby by Bentley Motors (1931) Limited, now a division of Rolls-Royce. This Vanden Plas-bodied Bentley is the later 4.25 Litre model first built in 1936. It is one of the la....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Saloon
Coachwork: Park Ward & Co.

Chassis Num: B131MX
Engine Num: U5BE

In 1936, the Derby Bentley engine was increased to a capacity of 4257cc, thus becoming the new 4¼-Liter model. The well-proven chassis was retained, as was the faultless gear-change and servo-assisted brakes. ....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Sunroof Coupe
Coachwork: Vanvooren

Chassis Num: B132LS

The Bentley 4.25 L was the second Bentley model produced after Rolls-Royce's acquisition of the Bentley Company. The 4.25L was a development of the early 3.5L and originally intended to supplement the smaller engined car. The cars were elegant and re....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Sport Coupe
Coachwork: Park Ward & Co.

Chassis Num: B30MR
Engine Num: C8BM

This 1939 Bentley 4.25 Litre Sports Coupe is known as the 'Honeymoon Express.' It was built for the chairman of the coachbuilder Park Ward and was shown at the Earls Court Motor Show in London in 1938. It is one of very few two-passenger cars built o....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Embiricos Coupe

Chassis Num: B119MX
Engine Num: W9BC

The Embiricos Bentley was commissioned by Walter Sleator from French coachbuilder Marcel Pourtout for Sleator's client, international sportsman Andre Embiricos. Pourtout's official stylist, Georges Paulin, penned a coupe with aerodynamic principles, ....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Pillarless Saloon
Coachwork: Vanvooren

Chassis Num: B3MX
Engine Num: B7BN

This 1939 Bentley 4.25 Liter Vanvooren Pillarless Saloon was ordered on June 17th of 1939. It was shipped to France where it was given the Vanvooren pillarless saloon body. ....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Drpohead Coupe
Coachwork: Park Ward & Co.

Chassis Num: B157MX

The 4-1/4 Litre Bentley built from 1936-1939 was the second model produced under Rolls Royce ownership. They were built in Derby, England and known as the 'Silent Sports Car'. One thousand two hundred and thirty-four 4-1/4s were made and only 203 wer....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Drophead Tourer
Coachwork: Vanden Plas

Chassis Num: B154MR

This Bentley 4.25 Litre is one of the most famous Derby Bentleys. It was fitted with striking open tourer 'cut-down door' - style coachwork by Vanden Plas of London and finished in a color scheme that earned it the nickname of 'Honeysuckle.' The 4.25....[continue reading]

1939 Bentley 4¼ Liter vehicle information

Drophead Coupe
Coachwork: Vanvooren

This Bentley 4.25 Litre was ordered by Baron Robert Gendebien and was the last Bentley chassis to be exported to the Continent before the war. Vanvooren completed the body in Paris and delivered it to the Gendebien family estate in Belgium, where it ....[continue reading]

Tourer by Vanden Plas
Chassis #: B91 MX 
Saloon by Park Ward & Co.
Chassis #: B131MX 
Sunroof Coupe by Vanvooren
Chassis #: B132LS 
Sport Coupe by Park Ward & Co.
Chassis #: B30MR 
Embiricos Coupe
Chassis #: B119MX 
Pillarless Saloon by Vanvooren
Chassis #: B3MX 
Drpohead Coupe by Park Ward & Co.
Chassis #: B157MX 
Drophead Tourer by Vanden Plas
Chassis #: B154MR 
Drophead Coupe by Vanvooren
 


Concepts by Bentley



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Performance and Specification Comparison

Model Year Production

#1#2#3Bentley
1942Chevrolet (254,885)Ford (160,432)Plymouth (152,427)
1941Chevrolet (1,008,976)Ford (691,455)Plymouth (522,080)
1940Chevrolet (764,616)Ford (541,896)Plymouth (430,208)
1939Chevrolet (577,278)Ford (487,031)Plymouth (423,850)
1938Chevrolet (465,158)Ford (410,263)Plymouth (285,704)
1937Ford (942,005)Chevrolet (815,375)Plymouth (566,128)
1936Ford (930,778)Chevrolet (918,278)Plymouth (520,025)
1935Ford (820,253)Chevrolet (548,215)Plymouth (350,884)
1934Ford (563,921)Chevrolet (551,191)Plymouth (321,171)

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