There was a thought that someone else I know threw out.

Some states have different speed limits for trucks and for cars, and for these purposes they have a legal definition of what constitutes a truck (in his state, I think it was any vehicle over 4 tons).

His suggestion was just to lower the limit to 2 tons.  All of the big SUVs would have to slow down while everyone else zips past them.

Not really a practical suggestion, but still kind of funny to think about.

I don't suppose anyone's still reading this thread, but aren't SUV's trucks anyway for the purposes of emissions and efficiency and safety?

If places like California, which have different speed limits for cars and trucks, had enforced the SUV=truck idea from the start, SUVs would never have taken off.

Sigh...

I hear you CP! Very good point.