it's unsafe if you don't stop when you feel the need to stop. Also: never drive long distances alone. I worked as a roadie in the music business, and I would

it's unsafe if you don't stop when you feel the need to stop. Also: never drive long distances alone. I worked as a roadie in the music business, and I would never put in danger the 5-6 sometimes 9 people I had in the van with me, with all the equipment. I just drive at a regular pace around 100 kms/h and use the cruise control whenever possible I also set the limiter to something below the speed limit, to remind me to not go too fast (sometimes you find yourself speeding without even noticing because the road allows you to) I never drove more than ~5 hours straight and of course it all depends on the road conditions, crossing the Italian Alps toward Austria with snow it's not the same as cruising on German highways (where there's always some kind of fixing going on, so you aren't really going that fast) All in all the safest safety device right now is the human driving. But modern safety technologies are more than welcome , you can set a safety distance from the car in front of you, they follow the lines on the road so they actually can correct you if you make a mistake or are distracted, it got a lot better than the 90s where I drove my dad's car for 9 hours from my house to go snowboarding on the Alps. We were a gang of four and took turns.