The recent Frankfurt Auto Show brought much buzz about green cars, with seemingly every manufacturer bringing out the latest in tiny, eco-friendly vehicles. In fact, Inhabitat rated the Top 5 Alternative Motorcars from the show, and Volkswagen’s concepts placed first and second.

VW, whose 2009 Jetta TDI won Green Car of the Year, showed off the E-up! and L1 concept cars in Frankfurt.

The E-up! is a teeny electric car that is set to launch in 2013. It’s being dubbed the Beetle of the 21st Century by Volkswagen…meaning that they intend this little 10.5 foot long car to be huge!

It’s got a range of 80 miles and can recharge 80% of the battery in just an hour! Sign me up!

For all the technical details, head on over to AutoBlog.

The L1 is VW’s 1-Litre car. Claimed to be the “most fuel-efficient car in the world”, this puppy is coming in at 170 mpg. This is a hybrid diesel vehicle that could also be seen on the streets around 2013.

As you can see, this one definitely has a concept car / Jetsons feel to it. Very slick!

For more details, check out AutoBlog.