Today on Green Car Reports: The Nissan BladeGlider electric sports car concept is revealed, U.S. demand for the BMW i3 electric city car is expected to be strong, and what we know--and what we need to find out--about three recent Tesla Model S fires. All this and more on Green Car Reports.

Read our first drive review of the 2014 Mazda 3.

The Nissan BladeGlider concept is an electric Delta Wing racer for the road, and is set to debut at the upcoming Tokyo Motor Show.

An updated gas-mileage aid: Valve caps that change color with tire pressure.

BMW i3 demand will be strong in the U.S. as well as in Europe, an executive says.

The 2014 Honda CR-Z HPD: Is performance up, and economy down, for this hybrid hatchback?

What we know, and what we need to find out, about the recent Tesla fires.

Does the iPhone need a car mode? Would you use it?

Finally, some 2015 Nissan compact hatch spy shots.

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