Today on Green Car Reports: The 2015 Audi S3 e-tron plug-in hybrid will launch in Germany this winter, the 2015 Hyundai Sonata Eco debuts, and why lithium-ion batteries degrade over time. All this and more on Green Car Reports.

Is a spiffy paint-color option the only green thing about the 2014 Subaru XV Crosstrek Hybrid? Find out in our video review.

Find out why lithium-ion batteries degrade with repeated charging.

The Toyota Aygo is the much-improved Scion iQ alternative the U.S. won't get.

Nissan "hopes" to improve its Carwings telematics app, including adding the capability to gather data on battery-pack health.

The 2015 Audi A3 TDI diesel luxury sedan is priced from $32,600.

In other Audi news, the 2015 S3 Sportback e-tron plug-in hybrid will go on sale this winter in Germany, with a U.S. launch likely to follow.

The 2015 Hyundai Sonata Eco boasts 32 mpg combined from a turbocharged 1.6-liter four-cylinder engine.

The 2015 Chevrolet Silverado and GMC Sierra full-size pickup trucks adopt the new SAE J2807 towing standard.

Finally, spy shots of the 2015 Honda CR-V small crossover, a mid-cycle update of the current model.

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