The following cars represent the most technically advanced available.
The 2014 Subaru XV Crosstrek Hybrid struggles to justify its bigger price tag, as it doesn't have significant power or efficiency gains over even its non-hybrid base model and pales in comparison to other hybrid wagons.
During a presentation of its five-year product plan, a Chrysler spokesman said the company would focus on mild hybrid drivetrains in its vehicles.
Watch out, Tesla Motors. Hybrid Technologies is preparing a sports car for the Automotive X Prize contest.
If you have a commute under 50 miles and a place to plug the car in, the 2013 Ford C-Max Energi makes an economical and excellent commuter and family vehicle.
Volvo is taking its C30 DRIVe Electric concept to the next level and adding a fuel cell to extend the electric vehicle's 94-mile range by another 155 miles. And the carmaker intend to use an on-board reformer to convert gasoline to hydrogen to power the fuel cell.
Starting in 2011, expect the regular highway lanes to be crowded with about 85,000 more vehicles, as the HOV access comes to an end for hybrids. But the free ride continues for zero-emissions vehicles like the Tesla Roadster and Nissan Leaf.
Along with details about its 2013 Range Rover, Land Rover teases with an announcement about an upcoming diesel-electric hybrid drivetrain for its signature SUV.
The Toyota Prius may still be the hybrid market leader, but there are many other options on the market.
At the 2013 Geneva auto show, Peugeot unveiled the first-of-its-kind HybridAir system in its 2008 model, with a drive system that combines compressed air and gasoline power.
The push for hydrogen-powered fuel cell vehicles got an extra push from agreements by five major automakers to co-develop the technology.