scott wrote:
> 
> Have different speed limits depending on how much pollution your car 
> produces.  Allow the most fuel efficient cars to go slightly faster than 
> they can today, and make other cars go slower.  In the centre of cities 

That would require more lanes. On a normal 2-lane (1 per direction) road 
different limits on same-class cars only generates angry drivers, while 
the traffic ain't smooth and easy anymore, but there's lots and lots of 
overtakes going on all the time.

-- 
Eero "Aero" Ahonen
    http://www.zbxt.net
       aer### [at] removethiszbxtnetinvalid

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