London borough seeks crackdown on noisy supercars

On one of London's most exclusive streets, drivers of two expensive cars are getting ready to leave their parking spots.

Owners of the Lamborghini and KTM X-Bow edge onto the road and drive off, the roar of their engines heard down Sloane Street.

Such supercars are a regular sight in the wealthy Knightsbridge neighborhood, home to some of the British capital's most expensive properties.