Engine data Overview Engine 646.821 EVO Engine 651.911 n Engine speed M Torque P Output 7 Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 q – This printout will not be recorded by the update service. Status: 09 / 2008 – Comparison Engine 646.821 EVO Engine 651.911 Difference Displacement cm3 2,148 2,143 –0.2% Rated output kW at rpm 125 3,800 150 4,200 +20% Rated torque Nm at rpm 400 2,000 500 1,600…1,800 +25% Maximum rpm rpm 4,900 5,200 +6%