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The Alvis Speed 20 SA is a very special motor car being the very first Speed model produced by Alvis. The SA was manufactured with the exceptionally smooth and powerful 2.5 litre straight six engine with triple carburettor set up and Alvis beam axle suspension providing fabulous road holding for a vehicle of this period. A new low chassis was used by Alvis where the side rails go over the front and rear axles and a centralised lubrication system was fitted allowing oil to flow through to the suspension. The suspension choice was half-elliptic leaf springs and self-servo mechanically operated brakes with 14 inch drums were used all round;and a four speed manual gearbox was twinned with the 2.5 litre engine. The Speed 20 was offered with a variety of coachwork options. Standard bodies were four door sports saloon by Charlesworth and a four seater sports coupe or tourer by Cross & Ellis but some cars were supplied in chassis form and had bodies such as Vanden Plas, as this example does. Only 30 Vanden Plas bodied examples are said to exist making this early Speed 20 type a very rare and sought after motor car.
GY 3986 is a beautifully presented example that has had in the region of £48,000 spent within the past 5000 miles covered. The Alvis comes with a comprehensive file of receipts detailing work carried out over recent years and the majority of the mechanical work has been done by marque specialists Red Triangle. The original 2.5 litre engine has been stripped down and rebuilt with new pistons, pistons rings, re-metalled rods, new valve guides, re-cut valve seats all new gaskets and a new clutch, rebuilt water pump and rebuilt carburettors. The gearbox has also been fully stripped down and fitted with new gears and bearings and the differential was stripped down, re-shimmed and rebuilt. A new differential carrier bearing and differential pinion bearing has been fitted and a new rear spring hanger cross member fitted. Further work to the Alvis includes manufacturing new brake pedal pin and bushes, steering column bush and the radiator has been re-cored with new honeycomb cooling element. The car has also been treated to a new petrol pump, new brake cables, new rear suspension springs, new kingpins and bushes, new track rod bushes and new wheel bearings. The Alvis has been maintained with no expense spared and as a result of expenditure; it is a car in strong mechanical order.
The Alvis Speed 20 presents superbly having been subject of a full bare metal re-paint that has been carried out to a very high standard. The interior has been completely re-trimmed in leather at a cost of £8500 alone and the hood is also new. Chrome work is exceptional throughout and the engine bay is outstanding and presented at show level. Over £1000 has recently been spent on a new set of tyres and wire wheels are in excellent order. The Alvis comes with full tonneau cover, hood cover, trickle charge system and comprehensive file of paperwork with MOT certificates dating back to 1983. On the road GY 3986 performs superbly with a lovely strong rebuilt engine holding excellent oil pressure. The gearbox is superb to use as expected having being completely overhauled and the steering and brakes are sharp and efficient. This fabulous tourer is a magnificent motor car and has provenance in being a matching numbers car with the incredibly desirable and original Vanden Plas body. There are very few VDP bodied SA open top cars available and as a result are delighted to offer this stunning car onto the market.