New Tesla Model 3 Performance at 156 mph

This is km/h based on the speed of other cars on the road.

No, it's not. What you see is mph (no km/h). Video never captures the real speed properly. I tried to film motorcycling before. Even crazy 58 degree 200km/h corners look rather slow on video.

Funny, perceptually, it didn't feel all that fast, relative to the other traffic. Felt more like 75mph.

Speed sensation cannot be captured on video, unfortunately. One of the best examples I know is motorcycling: even going super fast on windy roads looks quite lame on video. Motorcyclists who tried filiming motorcyling know what I mean.

I'd be impressed seeing this on a designated race track...but not showing ones lack of concern of safety to the general public.

What you see is a rather common thing on this type of road / area and low traffic density. Statistically causes very few accidents as opposed to slower drivers (who use phones). You simply got a very very narrow experience scope and therefore fail to assess the situation.

4% of the battery used in 60 seconds.

Interesting that you're using up 4% of battery charge per min.

This is incredibly stupid. Do this on a track.

Don’t forget if just one of those vehicles you pass looks to the side to change lanes rather than the rear view, your life and theirs changes forever. Yeah that’s a stupid, lazy way to change lanes but sometimes drivers think they’ve not seen a car for a while so no need to look