18 points
Two car lengths isn’t even remotely enough space if you’re traveling at high speeds.
7 points
Yeah, I follow the 3 second rule and try to keep 3 seconds of travel distance between me and the car in front of me
2 points
It depends.
On a well developed well maintained “freeway” with multiple lanes, shoulders for break downs, gentle curves, et cetera it’s common. 3 car lengths is more common here I think.
That said, on a “highway” (interstate?) without everything listed above I aim for 2 seconds, which is about 60 metres at highway speed.
