Today, we have efficiency ratings for the 2017 Toyota Prius Prime plug-in hybrid, Consumer Reports' opinion of Tesla's updated Autopilot system, and General Motors makes its first allocations of 2017 Chevrolet Bolt EV electric cars to dealers. All this and more on Green Car Reports.

Check out our first drive of the Toyota Prius Prime, electric cars from the 2016 Paris Motor Show, and more in our Week in Reverse feature.

Carnival Corporation plans to put natural gas-powered cruise ships in service beginning in 2019.

Learn about the 2018 Smart ForTwo Electric Drive with our preview of the new electric car.

The United Nations' aviation agency reaches an agreement to limit carbon emissions from international flights.

At 133 MPGe the Toyota Prius Prime wallops the previous efficiency champ, the BMW i3 electric car.

The EPA proposes adding more ethanol blends to the "Flex Fuel" category, hoping this will spur interest in ethanol.

Tesla's version 8.0 software update made Autopilot better, but the system still needs improvement, says Consumer Reports.

General Motors has made its first allocations of 2017 Chevrolet Bolt EVs to Chevy dealers, according to a report from a southern California dealership.

We compare the Hyundai Accent and Nissan Versa subcompact cars.

Finally, Jaguar makes a lackluster debut at the season-opening Formula E electric-car race in Hong Kong.


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