From a heavily updated Toyota Yaris to lease deals on the BMW i3 electric car, today seems to be small-car day--although a convertible conversion of the big luxury Tesla Model S offsets all of that.

Plus, we dig into what makes a new French compressed-air hybrid concept car work. All this and more on Green Car Reports.

Want to build yourself a BMW i8 plug-in hybrid sport coupe? Just use the i8 online configurator, which is now live.

Want a Tesla Model S, but also want the wind in your hair? We've got video of the first Tesla Model S convertible on its own wheels.

We'll never see the Citroën C4 Cactus Airflow 2L Concept car in North America, but its compressed-air hybrid system is worth learning about.

National Drive Electric Week--which is actually quite international now--got almost 100,000 people to see, talk about, and test electric cars last week.

The Rockefellers, heirs to the Standard Oil fortune, are divesting fossil-fuel stocks from their family funds.

In its fifth month of sales, lease deals on the 2014 BMW i3 electric car are starting to appear.

We have a first-drive report on the restyled and updated 2015 Toyota Yaris subcompact, which has...ummm...pluses and minuses.

And finally, we tell you what makes a 2015 Ford Mustang EcoBoost sound so good: an active sound generator.


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