Do you know the real reason why there is a 70mph limit on motorways?? It has nothing to do with safety. Basically when there was the Oil crisis in the 60s they thought it would be a good idea to put the limit at 70 for fuel usage reasons, less speed better economy.. And now they are trying to twist it in to speed kills! Which we all know is not true. Irresponsible driving, lack of observation, bad use of speed, that is what causes the accidents not the speed as such.