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Originally Posted by rrrrrroger
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Make? Model? I would like to test drive one. In fact, it is just a 'model', not a real car, and many of us would welcome a diesel-hybrid. GM had in 2000 a concept car called the "
Precept" that would have been a Prius killer had it been produced. But sad to say, the production model, the Volt won't be here until 2010.
Quote:
Originally Posted by rrrrrroger
. . . which uses less energy than a gasoline hybrid. As you'd expect. A diesel engine runs at close to 60% efficiency while a gasoline engine peaks at ~45%. Thus the diesel hybrid not only pulls more work out of each BTU of energy, but also has the benefit of a EV mode for city driving. It is the best of both worlds:
- an EV mode for city driving (like a prius)
- a diesel mode for highway (very efficient -same mode used by long distance trains & trucks)
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BTW, you may want to cite a source for your thermodynamic efficiency numbers for automotive diesels. As a general rule, throttled operations tend to decrease efficiency significantly.
BTW, I was looking for something else and came across John's guidelines for dealing with hybrid skeptics:
http://john1701a.com/
Mac users can use the "CNTL" key to download some of his links that call for a 'right-click' operation.
Bob Wilson