Keeping the peace
If you have teenage brothers and sisters who fight or niggle at each other, it may be worth splitting them up: put one of them in the front and sit in the back yourself.
Some teenagers need very little entertaining. They read, listen to music, play games on their phone, message their friends or, if they bring a friend along, chatter for the entire journey. Others (in our house it was usually the boys) get bored more quickly and need to stretch their legs more often, so frequent stops are essential.
Letting them choose the radio station can keep them quiet for a while, although the parents might get a bit frazzled with Radio 1 on for the entire journey.
Cards
A game of cards can while away an hour or so, and you can make it more fun by playing for something, or by having the loser do a forfeit.
Map reading
Giving a teenager the job of navigator can work quite well if you ask them to point out landmarks along the way, such as rivers or roads coming in from the left or right, to keep them focused. It makes them feel part of the trip, and sometimes treating a child like an adult brings out the best in them. These days that probably means the map on a phone rather than the road atlas.
It could, however, get very fractious if they are bad at it and send you the wrong way, so it’s a good idea to know where you’re going before you set out if there’s any doubt at all about their abilities!
Exercise the brain
A book of puzzles or brain teasers can keep them quiet for twenty minutes or so. The really tricky ones might take hours, so it depends how long your children can concentrate for.