Kim Brennan wrote:
> I mean, I could probably design a vehicle that gets 50mpg and weighs 4
> tons. (it would accelerate worse than a tortoise, but that'd be the
> price for good fuel economy).

You're forgetting that relatively little driving these days is "get up
to speed and hold it there."  Most people have stop-and-go commutes.  It
takes a certain amount of energy to accellerate something heavy, no
matter how you do it.

--

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