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Posted by OscartheGrouch on August 16, 2006, 3:29 pm
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> perfb@yahoo.com wrote:
>> looking for links to info on breakdown of car design factors re how
>> they contribute to the differential in mileage rating re regular car,
>> e.g.:
>>
>> compare the 'base' gasoline Camry mileage (~25 mpg?) to the Prius (~45
>> mpg?), assume the difference is ~20mpg, what factors account for this
>> ~20mpg difference, and what is their relative contribution?
>>
>> gas engine running at optimum rpm when on: 30%?
>> aerodynamic profile: 20%?
>> vehicle weight: 10%?
>> tire rolling resistance: 10%?
>> braking regeneration: 10%?
>> gas engine small displacement: 10%?
>> gas engine off when idle: 10%?
>> other factors???
>>
>> would appreciate any links to websites that do an analysis of these
>> design factors, tia!
>>
> If you want to eliminate aerodynamics as a factor, you could compare the
> gasoline only Camry with the hybrid Camry, or the Highlanders or the RX3?0
> and RX400h. There is zero difference in those pairs.
I'm not aware of any websites that analyze these factors in the Prius. Seems
like something like it should exist.....
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