Is this a case of man bites dog?
http://209.85.173.104/search?q=cache...&client=safari
A mid-size BMW sedan equipped with a diesel engine returned better fuel economy on a 545-mile, London-to-Geneva, run than a gasoline-powered Toyota Prius. A BMW 520d with a 2.0-liter diesel engine and regenerative braking (but no heavy duty hybrid features) got 41.9 mpg while the full-hybrid Prius, 500 pounds lighter, got 40.1 mpg.
Two writers for the Sunday Times (London) wondered if official mpg ratings were accurate after hearing from their readers who said the Prius ratings were high by 15 (U.K.) mpg. "If our readers are right and the official figure is wrong it has important implications, not least of which is that people driving frugal diesels are getting a raw deal," the paper said, since hybrids get some tax and roadway access benefits in Europe as they do in the U.S. To find out, they drove BMW's midsize 5 Series sedan and the Prius London-to-Geneva, adding 100 miles to the route "to give the Prius the advantage of running in urban conditions where its petrol-electric drivetrain comes into its own."
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