The initials TZ (Tubular Zagato) derives from its chassis built with steel tubes with small diameters that the deeply distinguished from normal production. He was the bridge after independent wheels with brakes at the differential. The car, with its numerous successes and his vocation corsaiola, contributed significantly to the revival of the sport of Alfa Romeo. The engine is a 4-cylinder in-line 1570 cm. Cubic, 112 hp in its basic version, 2 shafts cammes head, but many other levels of power expressed in his prepared versions, engaged in the race. (BOX 24X7X17 Cm.)