The following cars represent the most technically advanced available.
The 2015 Volkswagen Golf GTE remixes the GTI's 200-hp output with a plug-in hybrid power-train, blending performance with 130-mpg efficiency.
Pricing not available
The 2014 Honda Accord Plug-in keeps up with the competition in some ways, but the overall package lacks cohesion, and quirky features such as the right-side camera don't add much.
BMW went back to the drawing board to come up with the i8, a car with three motors, four seats, all-wheel-drive, and a swooping exterior that's straight out of the future. Our first impressions on the road.
Despite a few minor quibbles, the 2014 Infiniti Q50S Hybrid steps up the tech for good fuel economy, handling, driver-assistance features, and cabin infotainment in a premium sport sedan.
The plug-in hybrid Golf GTE is the third GT in the Golf model series, following turbocharged GTI and turbodiesel GTD.
Volvo expects to launch its first plug-in hybrid, an SUV, in the US next year.
At the 2013 Frankfurt auto show next month, BMW will display an X5 model SUV concept with a plug-in hybrid drive system.
Hybrid cars marked a first step from gasoline to electric power, and now plug-in hybrids take us one more step closer to an electric-car future.
While the beautifully-designed 2014 Cadillac ELR offers refined electronics and comfort worthy of the brand, Its lack of sporting performance and high price tag limit its appeal.
Honda Accord Plug-In delivers huge MPG but with some odd twists, the inside scoop on the new backup camera law, and Cooley's top 5 cars with a stick.