Quote:
Originally Posted by mikeSS
One thing that is overlooked, specially by americans is Co2 emissions. On average a smaller engine with turbos will produce less emissions. Although you are right in terms of fuel economy. Big V8 engines can turn decent fuel ratings. once you add electric assist, it cuts emissions dramatically.
the emissions is what everyone is worried about.
I would say cars like the 918 spyder are the way of the future. they retain a high displacement, high powered gas engine while having electric assist. You can run the car for 20 miles on just electric. for some people who just drive around town, 20 miles is plenty. but overtime this number will only get better. its way to expensive for affordable cars at this time though.
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CO2 emissions are just a different way to measure fuel economy.
1 (US) gallon of gasoline = 19.64 lbs of CO2
Its a bit less for ethanol, a bit more for diesel. But the point is, burning a specific amount of fuel results in a specific amount of CO2. Electrification will improve fuel economy, just as it improves emissions for the exact same reason: when driving on electricity you are not burning any fuel, getting infinite miles per gallon and producing 0 emissions.