1961 Fiat 600 D Berlinetta Aerodinamica Modello 'Y' (Pininfarina)

Pininfarina's new Project Y. Succeeding last year's Project X, which had fore and aft wheels mounted on the centre line and two side wheels amidships, the new version has conventional wheel locations and is based on the Fiat 600D. Large tail fins incorporating the slender rear winkers are retained, and there may be lessons to be learned from them in making rear-engined cars more directionally stable. Representing the alphabetical terminus, no doubt the subsequent Project Z will represent the ultimate ideal theoretical shape.