Exploring Hydrocarbon Depletion
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Manufacturer Model Specification Fuel Type Transmission Combined MPG VED Band
HONDA Insight Insight Petrol Hybrid M5 83.1 A
CITROEN C2 1.4 HDi Diesel M5 68.9 B
CITROEN C1 1.4 HDi Diesel M5 68.9 B
RENAULT Clio 1.5 dCi 80 Diesel M5 67.3 B
CITROEN C2 1.4 HDi SDrive Diesel A5 67.3 B
CITROEN C3 1.4 HDi Diesel M5 67.3 B
RENAULT Clio 1.5 dCi 100 Diesel M5 65.8 B
RENAULT Clio 1.5 dCi 65 Diesel M5 65.8 B
CITROEN C2 1.4 HDi Diesel M5 65.7 B
TOYOTA Prius 1.5 VVT-i Hy Petrol Hybrid E-CVT 65.7 B
dolanbaker wrote:Plenty of decent economic cars around now (in Europe) format's a bit crap but you can see plenty doing more than 66mpg
timmac wrote:For Europe that's good but that car was produced for America 43 years a go and here we are today and the auto-makers are bragging about there 35-40 mpg cars.
Fatter cars have killed off decades of work to make engines more fuel-efficient, a US study has shown.
...vehicles sold in the US between 1980 and 2006, and found that all the advances in engine technology have ''barely increased the mileage per gallon that autos actually achieve on the road''.
... attributes the poor fuel efficiency advances to a 26 per cent gain in kerb weight over time. By comparison, the average fuel efficiency of vehicles sold in the US has increased by only 15 per cent.
....advances in engine technology that yield a 60 per cent gain in efficiency, while engine power had doubled over the study period.
..... if cars today were of similar size and power to those typical of 1980, fuel use in the US will have dropped from an average 10.2L/100km to 6.4L/100km, well below the current average of about 8.7L/100km.
''Most of that technological progress has gone into [compensating for] weight and horsepower,"
Car makers are also struggling with another weight-gain problem; the growing level of obesity in many of the markets in which they sell their products.
Luxury brands including Bentley, BMW, Mercedes-Benz and Porsche all offer features that help larger-size drivers, including wider seats, better reinforced doors that allow people to haul themselves out of a car, and steering columns that automatically retract and rise to give easier access.
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