About Calculating overtaking distance: the 60-formula and the blind spot: which statement is WRONG?
Even on the motorway the manoeuvre may not take longer than necessary, and you may not exceed the maximum speed.
At 80 km/h and a leader at 25 km/h the overtaking distance is 87 metres; at 80 km/h and a leader at 60 km/h (a smaller difference) the overtaking distance is 240 metres.
The sequence is three steps: first the interior mirror, then the left exterior mirror, AND THEN over your left shoulder — only that last step covers the blind spot no mirror shows (trap: final check step skipped).
The 1.5 metre lateral clearance when overtaking cyclists and pedestrians only applies at high speed, such as on a motorway.
Explanation
trap: a condition added that the book does not state. Book p.145 - the rule is stated generally: 'when overtaking pedestrians and cyclists, keep sufficient lateral distance (at least 1.5 metres)', with no restriction to motorways or high speed