On Nov 28, 2007, at 1:13 PM, David VanHorn wrote:

> I remember something gas powered from toyota(?) in the late 70's that
> got 40+, and I seem to remember 50-ish highway.

Emissions equipment and fuel content has changed relatively
significantly since the 70s, hasn't it?  The LA basin isn't
brown any more, and you have things like California's complete
ban on diesel passenger cars...

Also, given the way efficiency standards work, it seems that
the horsepower of american cars creeps up at a given MPG level,
rather than MPG creeping up while horsepower remains constant.

BillW
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