Quote:
Originally Posted by Patrick
Aerohead, is it possible that they have also reduced rolling resistance and powertrain losses?
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Patrick,I don't believe that even the low-R-R concept tires can make up the difference.
As of 1994,the Ford Motor Co. was rating a conventional powertrain at 94.4 % efficiency ( see Popular Science,Aug. 1994,pg.6 ),so it doesn't look like there's much low-hanging fruit there either.
On steel wheels ,on a railroad track you could probably pull it off.