Coys Auction - True Greats
Royal Horticultural Halls
Elverton St
Westminster
London SW1

Thursday 4th December 2008

The Rolls-Royce 20/25, built between 1929 and 1936, succeeded the 20hp as Rolls-Royce‘s "small car". It was intended to appeal to owner drivers but many were sold to customers with chauffeurs. The in-line 6 cylinder overhead valve engine was similar to that used in the 20HP but was enlarged to 3699cc by increasing the bore from 76 mm to 82 mm with the stroke remaining at 114mm. A single Rolls-Royce carburettor was used and both coil and magneto ignition were fitted. The four speed gearbox was mounted in unit with the engine and a traditional right hand change used. Synchromesh was fitted to third and top gears from 1932. The substantial chassis had rigid front and rear axles suspended by half elliptic springs with braking on all four wheels assisted by a mechanical servo. Separate rear brakes were fitted for the handbrake. T