M5 507hp (373kW) 520Nm (Petrol) Engine Type: Petrol Power: 507hp (373kW) Torque 520Nm (384ft-lb) Stage 1: Stage 1 Power: 535hp (393kW) Stage 1 Torque: 538Nm (397ft-lb) Power Index: 6% Torque Index: 3% 3% August 20, 2019admin