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King: The Derby Built Bentleys

BENTLEY 3½ & 4¼ Litre 1933-40 In Detail

Bentley 4¼ Litre
(1936 - 1939)

Bentley 4 1/4 Litre, 1939
Bentley 4 1/4 Litre, 1939, #B121MX, H.J. Mulliner fixed head coupé. H.J. Mulliner erected this one-off coupé on a chassis from the 'fast' MX-series. (Photo courtesy of Lukas Hüni AG, CH)

From the Rolls-Royce factory in Derby the second model to bear the Bentley label was the Bentley 4 1/4 Litre. For an extra £ 50 a 4 1/4 litre engine was offered from March 1936 as an option in the already well-received Bentley 3 1/2 Litre chassis. Within short period sales of the 3 1/2 Litre declined and in fact the Bentley 4 1/4 Litre had become its substitute. The MR and MX chassis series introduced in 1939 were the final development of this model. Features like over-drive top gear as standard and improved White Metal bearings made the car ideal, then and now, for unstressed long distance Continental touring.


Technical Data:
6 cylinder in-line engine, cast iron cylinder block; bore x stroke 88.9 x 114.3 mm (3 1/2 in x 4 1/2 in), capacity 4,257 cc, cast iron detachable cylinder head, overhead valves, aluminium alloy crankcase, single coil ignition, stand-by coil, 2 SU-carburettors; Borg & Beck single dry plate clutch; 4-speed gearbox in unit with engine, synchromesh on 3rd and 4th gear (from 1939 overdrive gearbox with direct drive on 3rd and overdrive on 4th gear); hypoid bevel final drive; suspension by semi-elliptic springs front and rear; 4-wheel brakes servo-assisted; wheelbase 3,200.4 mm (126 in); tyre size 5.50 x 18 (from 1938 tyre size 6.50 x 17)

 Bentley 4 1/4 Litre, 1937, #B129JY, Gurney Nutting
Bentley 4 1/4 Litre, 1937, #B129JY, Gurney Nutting 3-Position-Drophead Coupé. This car's beautiful design has always been impressive but never more so than when starring as James Bond's transport in "Never say Never again".


No. made:
1234 Bentley 4¼ Litre

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