Alvis Speed 25

Alvis 4.3-litre
Sports coupé
by Mayfair Carriage Co 1937
Overview
ManufacturerAlvis
Production198 built
Model years1937 to 1940
Body and chassis
ClassFull-size luxury car (F)
Body style
  • 4-door sports saloon
  • chassis only also supplied
Layoutfront-engine, rear-wheel-drive
RelatedAlvis Speed 25 3.5-litre
Powertrain
Engine
  • 4,387 cc (268 cu in), 92 x 110 mm
  • Straight-6, Petrol
  • 137 bhp (102 kW) @3,600 rpm
  • 31.48 tax horsepower
Transmissionsingle plate clutch, separate 4-speed gearbox all-silent and all-synchromesh, centre change lever, open tubular propeller shaft with metal joints (arranged in a straight line), spiral bevel fully floating back axle
Dimensions
Wheelbase
  • 127 in (3,226 mm)
  • track 56 in (1,422 mm)
Length191 in (4,900 mm)
Width70 in (1,800 mm)
Kerb weight4,144 lb (1,880 kg)
Alvis Speed 25 3,5-litre
open two-seater
by Offord & Sons 1937
Overview
ManufacturerAlvis
Production1937–40
Body and chassis
ClassFull-size luxury car (F)
Body style
  • 4-door sports saloon
  • 4-seater drop head coupé
  • sports 4-seater
  • chassis for bespoke body
Powertrain
Engine
  • 3,571 cc (218 cu in) 83 x 110 mm
  • Straight-6 Petrol
  • 106 bhp (79 kW) @3,800 rpm
  • 25.63 tax horsepower
Transmissionsingle plate clutch, separate 4-speed gearbox all-silent and

all-synchromesh, centre change lever, open tubular propeller

shaft with metal joints (arranged in a straight line), spiral bevel fully floating back axle
Dimensions
Wheelbase
  • 123 in (3,124 mm)
  • track 56 in (1,422 mm)
Length190 in (4,800 mm)
Width70 in (1,800 mm)
Kerb weight4,088 lb (1,854 kg)
Chronology
PredecessorAlvis Speed 20 3.5-litre

The Alvis 4.3-litre and Alvis Speed 25 were British luxury touring cars announced in August 1936 and made until 1940 by Alvis Car and Engineering Company in Coventry. They replaced the Alvis Speed 20 2.8-litre and 3.5-litre.