London Cab

Taxicabs are regulated throughout the United Kingdom, but the regulation of taxicabs in London is especially rigorous both with regard to mechanical integrity and driver knowledge. An official report observed that: "Little however is known about the regulation by anyone outside the trade. The Public Carriage Office, who regulate and license taxis and private hire (commonly known as minicabs) was transferred from the Metropolitan Police to become part of Transport for London in 2000

If you want to use a traditional London cab, have a look at the following links

http://www.londonblackcabs.co.uk/

http://www.thelondoncabcompany.com/