Quote:
Originally Posted by robchalmers
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Green human test was unfair....why, do all drivers avoid hills? . . .
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Engineering data, metrics are neither fair nor unfair as long as they are accurate:
This data shows the 'knee in the curve' that happens with the 1.5L Prius. We subsequently learned that the 1.5L engine enriches the mixture at the highest power settings to protect the catalytic converter. Above 65 mph, the slope of the NHW20 performance is steeper than the Jetta TDI and intersects at ~80 mph. This is the 'Green Human' 1% difference after 8,000 miles and nearly a month of hard driving.
Edmunds ran a "Fuel Sipper Smackdown" between the 1.5L Prius, Jetta TDI, Honda Insight, Ford Fusion and Mini:
Edmunds took pains to show three styles of driving: back roads; city, and; highway. This lets potential buyers have a clue about how each vehicle is likely to perform before they pay out $25,000.
Gathering data from the same
Fuel Economy web site for any vehicle:
The sample set is statistically valid for both cars. The median and mean for the 1.5L Prius exceeds the Jetta TDI by ~17%.
Bob Wilson