Nissan has released new information about their hybrid system which will likely debut in the 2013 Altima.

Nissan has released new information about their hybrid system which will likely debut in the 2013 Altima.

Developed in-house, the fuel-efficient powertrain is based on the system used in the Infiniti M35h. It will feature a supercharged 2.5-liter four-cylinder engine, an electric motor and a lithium-ion battery. There's no word on performance specifications, but Nissan says it will be as powerful as a 3.5-liter engine.

In releated news, the company announced an updated continuously variable transmission which promises to improve fuel efficiency by as much as ten percent. It will be equipped on a variety of models and should be available on engines with displacements from 2.0- to 3.5-liters.

Note: 2010 Nissan Altima pictured

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