We were discussing a scenario where the outside lane was derestrictedm not in normal times. Why oh why would you not want to do 120mph? It would be the 120mph car fault tho would it, because you cannot prove the speed of the approaching car. People should check their mirrors and judge speed.
Rule 264You should always drive in the left-hand lane when the road ahead is clear. If you are overtaking a number of slower-moving vehicles, you should return to the left-hand lane as soon as you are safely past. Slow-moving or speed-restricted vehicles should always remain in the left-hand lane of the carriageway unless overtaking. You
MUST NOT drive on the hard shoulder except in an emergency or if directed to do so by the police, traffic officers in uniform or by signs.
https://www.gov.uk/guidance/the-highway-code/motorways-253-to-273
