Chevy Volt's 230 MPG Rating Taken Away

The 230 mpg rating was for city driving and required that the Volt be fully charged first, a process that can take about eight hours with a standard 120-volt outlet. GM never released a highway figure or a rating for when the battery was depleted, but we do know that GM was shooting for 100 mpg in a combined city/highway cycle. 

We criticized the 230 mpg rating when we first heard about it as something that would confuse the layman. Since the rating is more of a mathematical model, for use in government regulations, rather than a picture or real-world performance, we could see the rating disappointing, even angering, potential plug-in converts.

A final rating and methodology, likely developed by the Society of Automotive Engineers, is expected by the end of the year, around the same time the Volt goes on sale.

Chevy Volt 230-mpg forecast dead; feds work on new formula(USA Today)

2011|Chevrolet|Volt