Lots of electric-car news today. Nissan president and CEO Carlos Ghosn explains that the Japanese carmaker isn't wedded to its own electric-car batteries, Panasonic announces its first round of investment in the Tesla Motors "gigafactory," and we analyze BMW i3 incentives. All this and more on Green Car Reports.

BMW i3 electric-car incentives are heavier for the battery-only version as buyers gravitate toward the range-extended i3 REx.

We've got video and details on the Volkswagen XL Sport--the Ducati-powered performance version of VW's ultra-efficient diesel plug-in hybrid--from the 2014 Paris Motor Show.

Nissan isn't tied to its own electric-car batteries, and will seek out additional suppliers as needed, CEO Carlos Ghosn says.

Find out why small engines may use more fuel than you might expect, especially in Europe.

Panasonic will invest hundreds of millions of dollars in the Tesla gigafactory to start.

We test the gas mileage of both four-cylinder and six-cylinder versions of the 2015 Subaru Legacy mid-size sedan.

Certain 2010 through 2012 model-year Ford Fusion Hybrid and Lincoln MKZ Hybrid models are being investigated for power-steering issues.

Finally, Volvo unveils a prototype 450-horsepower 2.0-liter Drive-E four-cylinder engine with an electric turbocharger.

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