The 1948 Porsche 356 employed a platform chassis with rear-mounted air-cooled engine and torsion bar all-independent suspension. 1955 marked the arrival of the 356A, readily distinguishable by its now curved one-piece screen, a wider range of engines and 15'' instead of 16'' wheels. Announced at the 1959 Frankfurt Motor Show, the Porsche 356B T5 enhanced Porsche's reputation as builders of the finest small capacity sports cars, continuing the huge commercial success of its predecessors. Handling, ride and refinement were improved, as well as the addition of a more powerful 90bhp 1600cc engine to the range, a higher nose, more vertical headlamp lenses and raised front winglets - all of which upped the original cars' appeal and firmly established it as by far the best car in its class.