In a new dual commercial for both the Nissan Leaf and Apple’s iAd mobile advertising program, a soothing voiceover (that sounds a bit like a new age massage therapist) demonstrates the latest trend in content-advertising hybrids.

This car was debuted late 2009 and already has many pre-orders. The car will go about 100 miles on a  single charge. (Not perfect for my commute to work – nor my pocketbook, but it should work for many people!)… This is a great idea that has been around and used for years, but Nissan is making the bold step of mass producing the car. The cost will run you about $32 K, but there are tax benefits from the US federal government of up to $7500.

But could we one day have wind powered cars? that is even better than electric!

Despite modern forecasting techniques, wind remains a fickle element. It’s seasonal, dependent on storms and highly variable. Can we really count on wind to deliver steady, reliable energy for our cars?

It is possible that wind could become one part of a portfolio of alternative energy resources that could someday replace more traditional coal, natural gas and oil electricity plants. Keep reading to find out why wind can’t power a national fleet of cars, but may work well as one tool in a larger toolbox of energy sources waiting to make the United States a greener and more fuel-efficient country.

See the full story on wind-powered car technology at HowStuffWorks.com.