If all vehicles on the road were limited to 65 mph, that would be just fine with me.
We have lots of Interstate in AZ with 75 mph speed limits. What that means is half the people on the road are driving 80-95 mph. Then, there are trucks and slower moving RV's and cars going 60-80 mph on the flats and 35-60 mph up the hills, while the fast drivers are still trying to do 80-95 up the hills, because they can. That makes for a giant unsafe situation up every hill, as others here have already stated.
The problem as I see it, is not trucks not going fast enough. The problem is too high a speed limit, because we all know that there will be speeders, no matter what the speed limit is, and they are going wayyyy too fast, compared to the trucks and other traffic who are obeying the speed limit.
These speeders also like to drive with their brights on and blind everyone they come upon.
And let's not forget, it is primarily TRUCKS that pay for the highways, as commercial vehicles are taxed and fee'd to the moon and beyond. The highways belong to the trucks. Four wheelers (cars) are just using the roads that the trucks pay for.
