The follow distance is adjustable, from 1 car length to 7. I find 7 helps calm the nerves, it actually quite far. One thing I noticed is if the car in front of you hits the exit ramp and slows way down the Tesla will slow also until they are way over. That is not good with people behind you. And the auto drive sucks in the city, too many missing lane lines, intersections and so on. It is not ready for the city yet but on the freeway it is really good.