designer's own words:How the re-design does inherit Renault 4’s spirit and meaning? I think the classical characteristics should be followed, but adapted for 21st century style. However, type of vehicle and using methods are much more important. The adjusted figure includes pretty circular light and classical grille, and belt-line was re-designed in order to adaptability. While the essential characteristics was reserved, drawing fluctuant surface and change of details. New R4 was a 5-door vehicle with solar panels. It has an ecologically clean electric system and storage battery in the bottom of vehicle. The engine system is able to translate between Bio-energy and normal.