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Dave Plowman (News) Dave Plowman (News) is offline
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Default Lets have green public transport

In article ,
Doctor Drivel wrote:

"Dave Plowman (News)" wrote in message
...
In article ,
Andy Champ wrote:


(however you are correct, a diesel-electric with a generator and
battery set does have the opportunity to take the engine efficiency
up a bit. Not least because it can be tuned to run at one speed only)


But what speed do you set that at? That's the exact problem with the
Pious. The engine is tuned to run best at a particular speed. Exceed
the power it produces at that and it becomes horribly inefficient.
Drive slowly and with economy in mind and it can produce quite good
results. As, of course, can most other cars of that size. Load it up
and drive it a bit harder - like keeping up with the traffic on a
motorway hill - and it becomes far less economical than a conventional
car. As well as being a pain in the arse to drive.


Total ********!


Unlike you I have actually driven one.

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