Austin A99 & A110 Westminster
Longbridge · 1959–1968 · the Farina six
New body, bigger engine, front disc brakes — and a switch from Girling to Lockheed that catches people out.
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About the Austin A99 & A110 Westminster
The A99 of 1959 is a clean break from everything before it: an entirely new Pinin Farina monocoque, the C-series enlarged to 2,912cc with twin SUs for 103bhp and 158lb ft, a three-speed all-synchromesh gearbox with Porsche synchromesh, Borg-Warner overdrive standard on top and second, and front disc brakes with servo — the first Westminster with discs. The A110 followed in the autumn of 1961 with a two-inch longer wheelbase, 120bhp from a revised head, revised camshaft and a twin-bore exhaust, and a floor-mounted gearchange. The Mk II from the spring of 1964 brought 13in wheels. 26,105 A110s were built across both marks, against 15,162 A99s.
Brakes are the trap on this pair. The earlier drum Westminsters — A90, A95, A105 — are Girling. The A99 and A110 are Lockheed, with power-assisted 10.75in front discs and rear drums. Check which you have before ordering anything hydraulic, because the range changed sides mid-life. The badge-engineered siblings are the Wolseley 6/99 and 6/110 and the Vanden Plas Princess 3-Litre, and mechanical parts cross between all of them freely; grille, instruments and trim do not. There was a prototype Bentley version. The A110 was replaced by the Austin 3 Litre in 1968.
Austin A99 & A110 Westminster — specification & changes within the model
- A99
- 1959–1961, 15,162 built. 2,912cc C-series six (83.34 × 88.9mm), twin SU, 103bhp @ 4500rpm, 158lb ft @ 2000rpm. Wheelbase 9ft.
- A110
- Autumn 1961–1968, 26,105 built across Mk I and Mk II. Same 2,912cc uprated to 120bhp @ 4750rpm, 163lb ft @ 2750rpm via a revised head, camshaft and twin-bore exhaust. Wheelbase 9ft 2in.
- Brakes
- Lockheed, power-assisted, 10.75in front discs and rear drums — the first Westminster with discs, and a switch away from the Girling drums of the A90, A95 and A105.
- Gearbox
- Three-speed all-synchromesh with Porsche synchromesh, Borg-Warner overdrive standard on top and second; automatic optional. A110 has a floor change.
- Suspension
- Independent coil and wishbone front with anti-roll bar; half-elliptic rear. A110 adds a transverse anti-sway hydraulic damper at the rear.
- Mk II
- From spring 1964: 13in wheels replacing the earlier size.
- Body
- New Pinin Farina monocoque — the same design lineage as the Peugeot 404 and Lancia Flaminia. Nothing carries over from the A90/A95/A105.
- Siblings
- Wolseley 6/99 and 6/110, Vanden Plas Princess 3-Litre. Mechanical parts cross freely; grille, instruments and trim do not.
- Successor
- Replaced by the Austin 3 Litre in 1968.