Bait and switch
The ''credibility gap'' at the new General Motors seems to be growing a lot faster than the pile of old cars GM has absorbed in the cash-for-clunkers program. Last week, we reported in this space that GM's much-ballyhooed announcement that its Chevy Volt has received an incredible 230 mpg fuel economy ranking shriveled under close inspection. The new electric car can only achieve this standard if you don't ...
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