Today, we have details on the electric Vision Mercedes-Maybach 6 concept and 2017 Audi A4 Ultra, as well as new Environmental Protection Agency (EPA) emissions rules for heavy-duty trucks. All this and more on Green Car Reports.

The all-electric Vision Mercedes-Maybach 6 concept hints at the German luxury brand's future product plans.

Don't expect an electric or hybrid Porsche 911 anytime soon, says the sports car's product boss.

Hydrogen produced using renewable energy could cost the equivalent of 50-cent-per-gallon gasoline, according to a recent study.

The 2017 Audi A4 Ultra is an efficiency-focused version of the redesigned luxury sedan, achieving 31 mpg combined.

As cruise ships grow larger and attract more consumers, they are coming under scrutiny from environmental groups for high levels of diesel-exhaust emissions.

The EPA releases final emissions rules for heavy-duty trucks that call for emissions cuts of roughly 25 percent for long-haul trucks by 2027, and 16 percent for heavy-duty pickups.

Many Americans would consider buying a car on their smartphones, a new study says.

Finally, the Mazda MX-5 Miata RF small sports car will get a special launch edition, limited to certain buyers selected by Mazda.


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