The maddest-looking motor is a £370,000 Mercedes G63 AMG 6x6 - a six-wheel off-roader more suited to the sand dunes of Saudi Arabia than the congested streets of Kensington.

Britain's flashiest tourist has arrived in London with a fleet of gold cars worth more than £1 million. The fleet is believed to be owned by Saudi billionaire Turki Bin Abdullah who is currently touring wealthy parts of west London.