a city in the middle east may be the model for green living in the future. the city prides itself on sustainability and innovative construction. here is cnn's erin burnett with this week's city of tomorrow. >> reporter: about 20 miles outside abu dab business the city is striving to be the greenest city on earth. >> the city of the future is going to be based on people walking to where they live to where they work and to where they play. >> reporter: if you want walking, city director tony mallow says you can take a magnetically controlled car wherever you need to go. >> welcome. >> this is a little car? >> this is a personal rapid transit. this is how you get around the city. driverless, electrical and solar powered it comes when you want it and takes you where you want to go and you leave it alone. >> it is driverless? >> yes. >> reporter: navigating the city's 2.4 square miles is relatively easy. this is a dream of what the future could be, but is it really going to happen? is this going to be anything more than a demo?