Driving from Sagres, Portugal to Khasan, Russia.
This route has to be the shortest one between two points on earth.
Longest Drivable Distance
The most extreme point in Europe is Sagres in Portugal. The furthest east in Asia is Khasan, Russia. With only 2 customs points, one can drive continuously of 14,043km in 6days 19hours.
What do you think? Will you give it a try?