A99 Westminster 1959-61 specifications

Engine
6 Cylinder in line
Bore: 83.3mm
Stroke: 86.9mm
Displacement: 2,912cc
Valves: 12, pushrod overhead
Compression ratio: 8:3 to 1
Carburettors: twin semi
downdraft SU’s
Power output: 103bhp at 4,500rpm; 163lbft at 2,750rpm

Performance
Maximum speed: 98mph
Acceleration: 0-60mph 14.4secs
Fuel consumption: 19mpg

Transmission
Borg-Warner 3 speed manual with overdrive or 3 speed automatic
Clutch: Hydraulic, 10in dry plate
Propellar shaft: open needle universal joints
Rear axle: three quarter floating banjo type beam axle with hypoid-bevel final drive

Chassis
Construction: Unitary,
pressed steel

Brakes
Hydraulic, vacuum servo assisted
Front: 10.75in disc
Rear: 10in x 3in drum

Steering
Cam & peg, 20:1 ratio
3 turns lock to lock
Turning circle: 40ft

Suspension
Front: Independent coil & wishbone
Rear: semi-elliptic, leaf spring, anti-roll bar
Armstrong lever arm shock absorbers front & rear

Wheels
Pressed steel 5 stud
7.00 x 14in radial tyres

Dimensions & Weight
Wheelbase: 9ft 0in
Track - front: 4ft 5.8in
Track - rear: 4ft 5.2in
Overall length: 15ft 8in
Overall width: 5ft 8.5in
Overall height: 5ft 0in
Ground clearance: 6.4in
Kerb weight: 30.13cwt

Capacities
Fuel tank: 16 gallons
Sump: 11 pints
Oil filter: 1.5 pints
Cooling system: 201/2 pints
Gearbox: 15 pints

Production 1959-1961
Longbridge, 13,410 built.
Launch price: £1,149
Optional extras: Automatic transmission