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I was reading an article in last week's Times suggesting the environmental benefits of battery powered cars are marginal at best compared to ordinary combustion engines.

Could it be true that Porsche, Ferrari and Mclaren are really only interested in corporate image? What are the performance and efficiency gains from their proposed systems and do these outweigh the costs of their manufacture?

These systems are very expensive and complicated. Are you being sold a crock?
 

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It gets them thru' legislation targets. There is a large body of opinion/ academic analysis that claims the birth to death carbon footprint of battery power is poor compared with lean burn petro/chem.

Wind power is another area af dubious performance when birth to death analysis is considered.

However I guess the quest for 'clean' power can only deliver via action and development so todays tech leads to something better???

The major auto companies admit they are not sure which direction will deliver but they need to get to the crossroad first.

Interestingly they are all hedging their bets, look at BMW launching a number of all electric cars but also delivering 70mpg 2 litre performance cars........key thing is everything is making big advances in performance, fuel use and emissions........if you ignore birth to death carbon footprint and energy cost.
 
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