September 22 is World Car-free Day. The event encourages motorists to give up their cars and promotes improvements in public transport, cycling and walking. Let's take a look at some new vehicles people have invented.
The 'Flintstones' bicycle with no pedals or saddle. Called the Fliz, it needs the user to build up speed by running and then lifting their legs to settle on foot rests at the hub of the rear wheel.[Photo/VCG]