The distinction is quite obvious when you compare them. A self-charging hybrid is one you can’t plug in to charge the batteries separately. Instead, on-board systems top up the batteries as you
Because plug-in hybrids make such a strong use of their electric modes, it's tough to directly compare their gas mileage to that of other cars. The Volt's competitors, the hybrid Toyota Prius and Honda Insight, get 51 miles per gallon (21.7 kilometers per liter) city, 48 miles per gallon (20.4 kilometers per liter) highway and 40 miles per
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