Hyundai Santa Fe Hybrid concept

Hyundai shows off a hybrid version of its Santa Fe SUV at the 2008 Paris Motor Show.

Hyundai Santa Fe Hybrid
Hyundai shows a hybrid version of its Santa Fe at the Paris Motor Show. CBS Interactive


At the 2008 Paris Motor Show, Hyundai displayed a hybrid version of its Santa Fe small SUV. This hybrid powertrain uses a 2.4-liter gas engine complemented by a 40 horsepower electric motor that generates 151 pound-feet of torque. A six-speed automatic transmission delivers this combined power to the wheels. But the real innovation in Hyundai's hybrid system is the use of a 270 volt lithium polymer battery pack. Hyundai says that lithium polymer has greater energy density than lithium ion, can take more recharging cycles, and is cheaper to manufacture. In the Santa Fe Hybrid, this system returns 38 miles per gallon fuel economy.

Hyundai lithium polymer battery pack.
Hyundai's hybrid system uses lithium polymer batteries. CBS Interactive

The Santa Fe Hybrid demonstrates a hybrid powertrain that has been under development since 1999, although Hyundai introduced its current form in 2004. This hybrid system uses idle-stop to save gas, and recaptures energy from braking to recharge the battery. Hyundai intends to market its first hybrid, an Elantra, in Korea next year. No word on if or when Hyundai will make a hybrid available in the U.S.

See all coverage of the 2008 Paris Motor Show.

About the author

Wayne Cunningham reviews cars and writes about automotive technology for CNET. Prior to the Car Tech beat, he covered spyware, Web building technologies, and computer hardware. He began covering technology and the Web in 1994 as an editor of The Net magazine. He's also the author of "Vaporware," a novel that's available as a Nook e-book.

 

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