To quote Brucie.

Anyway, I was bored this afternoon heading back home along the old pack
road that runs parallel to the main road in these parts. So board I
devised this silly game (needs satnav and an empty road). 

Look at satnav.

Note distance to the next turning.

Accelerate up to the legal limit then hold it there for what seems like
about the right distance.

Then when you think you are close enough, lift off and coast to the next
turning point and try to get there without having to touch throttle or
brakes.