By Tina Casey
A revolving tag-team of student researchers at Middle Tennessee State University has developed a plug-in hybrid retrofit kit for cars that bolts inside the rear-wheel hubs without requiring any changes in the brakes, suspension, or any other mechanical systems. Kits like this might not gain much of a foothold in the individual market until gas prices [...]
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Reprinted from Cleantechnica with permission from Green Options Media.



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