On Wed, 18 Feb 2004, Andrew Grebneff wrote:

> Actually low-speed driving is far more tiring... boredom, as well as
> the extra time on the road.

I think there's an optimum speed, probably different for each person and
car.  When I drove my Honda Civic from Michigan to Colorado, I noticed
that driving in 75 mph states was more fatiguing than driving in 65 mph
states.  The reason was the considerably higher noise level at 75 mph.

David Brodbeck, N8SRE
'82 Volkswagen Diesel Westfalia
'86 Volvo 240DL wagon