In 1947, after the second world war, a group of researchers and entrepreneurs began to work on two new upholstering materials. Between 1951 and 1954, Arflex produced various models of car seats designed by Carlo Barassi using foam rubber and elastic tape, which could replace standard production seats and offer more comfort, with removable covers and adjustable seatbacks. The most successful of the car seats were the "MilleMiglia" and the "Sedile Lettino", a seat that could be turned into a makeshift bed. Both were designed for the Fiat Topolino.