Chris Williams' Packard-Bentley, "Mavis", powered by a 42 litre Packard V12 aero engine, developing 1500 bhp. Mavis is based on a 1930 Bentley 8-litre chassis.
The Napier-Railton is a 535bhp, 24 litre, W12, Napier Lion aero-engined car from 1933. Between 1933 and 1937 the Napier-Railton broke 47 World speed records at Brooklands, Montlhéry and Bonneville Salt Flats in Utah. It is owned by the Brooklands Museum.
