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The Sprinter Plug-in has a diesel engine. Diesel engines, on their own, are more fuel-efficient than gasoline engines and they have a lot of low-speed pulling power that makes them ideal for hauling.
After charging overnight at the plant, the Sprinter Plug-in can drive up to 20 miles on electricity alone. That's enough to complete a day's worth of short urban runs without using any gasoline at all.
Beyond that, the Sprinter Plug-in operates, like other hybrid vehicles, on its electric motors and internal combustion engines combined.
NEXT: Jeep Renegade concept
Last updated July 07 2008: 5:33 AM ET