About Checks before driving off: seat, headrest, wheel, mirrors and seatbelt: which statement is correct?
The headrest may sit low, as long as it is somewhere behind your head.
You only need to re-adjust seat, headrest, steering wheel and mirrors when getting into a new or unfamiliar car, not on every trip in your own car.
You put on your seatbelt before driving off, with no exception for road type or speed.
You put on the seatbelt first and adjust your mirrors afterwards.
Explanation
trap: speed-as-condition. You put on your seatbelt before driving off, with no exception for road type or speed. The seatbelt duty applies just as much in the city as on the motorway