690HP Mercedes-AMG C63 Wagon by POSAIDON

 

Starting under the hood, the biturbo 4.0-liter V8 engine has been equipped with new turbochargers, a remapped ECU, an upgraded charge air cooling system, and a sports exhaust system that “connects directly to the turbochargers and includes motorsport catalysts.”  Thanks to these modifications, the engine produces 690 hp (700 PS / 514 kW) and 656 lb-ft (890 Nm) of torque.  For comparison, the standard C63 has 469 hp (476 PS / 350 kW) and 479 lb-ft (650 Nm) of torque while the C63 S develops 503 hp (510 PS / 375 kW) and 516 lb-ft (700 Nm) of torque.