The Zonda S 7.3 of 2002 used a new, larger V12 engine displacing 7.3 L (445 cu in) designed and manufactured by Mercedes-Benz AMG producing 555 PS (408 kW; 547 hp) and 750 N⋅m (550 lb⋅ft). And to better handle the power, traction control and ABS were made standard. Performance claims were unchanged from the Zonda S.