While currently living in CA and having driven in many foreign countries - predominately France, sticking to the appropriate lane makes a HUGE difference, from

While currently living in CA and having driven in many foreign countries - predominately France, sticking to the appropriate lane makes a HUGE difference, from personal experience. French drivers will mercilessly tailgate and flash their lights at you if you're driving too slow on multi-lane roads. They live by the rule to be as far to the right as your preferred top speed allows, no matter your actual speed in KPH or the speed limit, so that faster cars can be on the left. (How it is supposed to work in the states.) Even if you're doing an easy 145KPH (90 MPH) and you're in the far left lane and another car is approaching faster, you are 100% expected to move to the right and allow them to maintain their illegal speed. I absolutely love their driving behavior.