In 1984 i had a 1982 VW Jetta Diesel 48hp that would
do 55-60mpg especially with a 55mph speed limit.
It did about 43-45 in town. Still see a few of the rare ones
like that or the 1982 VW pickup around. I remember being in the
hills of tenn., and top speed about 35 going up hill. People are not
all that interested in MPG, we have no one buying chevy volts,
I see more New Shelby 600hp Mustangs at the Wash. I have
a Nissan 2010 HEV or Hybrid electric Vehicle. 200hp gas and electric
combined, and gets around 35mpg city or Highway. If cooler and not
so much A/C-- it will do closer to 38MPG. My altima was discontinued
in 2011 -probably for lack of interest. They only sold them in 8
states, but i absolutely love the car. It is fast, economical,decent
looking, and 10 times the car my VW was. I bought mine at the
Mannheim auto auction for $14.5K with 30K mi. I probably could
not see paying the $30K new price. If gas was close to
europes prices they would all want those european econoboxes,
and the pickups and SUV's wouldn't sell.
http://www.edmunds.com/nissan/altima-hybrid/2010/