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From: peter@graffiti.UUCP (Peter da Silva)
Newsgroups: net.auto,net.legal
Subject: Re: 70 mph fuel economy
Message-ID: <162@graffiti.UUCP>
Date: Wed, 31-Dec-69 18:59:59 EDT
Article-I.D.: graffiti.162
Posted: Wed Dec 31 18:59:59 1969
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Xref: watmath net.auto:8085 net.legal:2297

> I have come to the same conclusion as Jan, but not because of fancy
> calculations, correct though they may be.  Quite simply, most cars sold
> today in which mileage is a factor are sold on the basis of EPA Mileage
> Estimates, which are conducted at 55mph.  Thus, the better the mileage
> *at 55mph*, the better the stats, and thus the more the mileage works
> in favor of a sale.  Any smart company would put a lot of effort into
> creating an engine which is highly efficient at that speed.  The only
> people who would design engines more efficient at higher speeds are
> people who are selling to people who don't care about mileage, such as
> Rolls owners, or who care more about speed, such as sports car
> enthusiasts.
> 
> 		Ken Arnold

Actually european cars are likely to be efficient at 100km/h, 70MPH, or
as fast as the tires can handle, by this logic, since these are the speed
limits in various foreign countries. 100 km/h is the limit in Australia,
Canada, and (I think) France. 70 is or was the limit in England at one time,
probably still is. On the German Autobahns there is no limit. On the
Autostradas the limit is (I believe) 100 MPH. None of these figures are
guaranteed, except for the 100 km/h, since they're the result of a conversation
with a Pommy car enthusiast which I'm still trying to dredge out of my mind.

Anyone have any better info on this?