the idea of a small electric car is not new.a number of different car manufacturers already sell such cars.but now a french company,renault,has designed a very special kind of electric car.by pushing a button,you can make it fold up!the back of the car folds into the car body.these cars were designed mainly for use in cities.they have several advantages over regular cars.their small size makes them much easier to drive around busy,narrow streets.they are also much easier to park in city parking spaces.like other electric cars,these autos do not pollute the air.this is an important consideration these days when many cities have serious pollution problems.