[QUOTE=RedDevil;471658]
2. You cannot really compare a diesel engine to a gas engine as the theoretical maximal efficiency of a diesel engine is significantly higher.[QUOTE]
Then you may as well say you cannot compare a hybrid to an ICE as the theoretical maximum efficiency HEV is 'significantly' higher. In actual fact, I'd suggest petrol+hybrid comes out about even to a diesel only.
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7. When you do a statistical analysis, you cannot draw conclusions on cases put up after the data is known.
If you look at the extremes you are doing just that.
And they are extremes - look how far they deviate from the average.
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By looking at the extremes I'm picking what the cars are capable of when the owner is trying. I'm not interested in the 'average' as they don't represent me. My Fiat would be third on Spritmonitor, at 4.7 even though the average is 6.05. My Kangoo would be second, my TDI struggles a bit in city use but would make 4th at 7.9 vs the 9.9 average. I do nothing but city driving with average commutes as slow as 14km/h. I don't believe the average is representative of results I or many of us would get. Heck even my Off road use only Wrangler on big all terrain tyres would scrape into second.
If the average represents the average driver and all my cars come out in the top four, I'd expect my hypothetical Civic diesel to also score in the top few places and thereby beat the hybrid.
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Any comparison willalways be thwarted in one way or another.
If you are bent to find data that confirms your beliefs you will find it.
I have no trouble finding data that confirms mine.
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Pretty much. I'm hardly crazy about diesel either
