Belt up and enjoy this 365-day ride as you cruise past the most momentous motoring events in history. Packed with fascinating facts about races, motorists and the history of the mighty engine, this is a must-visit web site for any car enthusiast.
Variable mandatory speed limits were introduced on the M25 (UK), replacing advisory speeds controlled by the MIDAS system. Initially they were between J10 and J15, but were extended to J16 in 2002. The mandatory limits were enforced by speed cameras.