I agree with what the sibling comments said regarding fines, and it would be interesting to see statistics before/after Germany introduced hefty fines/penalties for not keeping the required distance relative to speed.

One problem I've observed with uncoordinated speeds on German Autobahns is drivers who seemingly switch to their left lane without noticing a faster vehicle approaching which then has to brake suddenly which in itself is a danger to everyone. Out of anything, I feel like autonomous vehicles with coordination will make lives less stressful.