The rules of the Land Speed Record are a bit different. Instead of a terminal speed, the record is the
average speed of a car through a measured mile (or kilometre).
Hence, a car runs up from 1 or more miles before the measure mile and trys to maintain a high average speed through the measured distance.
Additionally, the record speed is the average of two runs in opposite directions and both runs must be completed within one hour.
The current British land speed record is 300.3 mph set by Colin Fallows in the Vampire jet car in 2000 on the Elvington runway.
Thrust SSC does not qualify for the British land speed record as the 763 mph World land speed record was not set within the UK.
