Posaidon has introduced their pretty serious version of the Mercedes-AMG GT aptly called the GT RS 700. The model features the twin-turbo 4.0-liter V8 engine from the standard car but has been equipped with upgraded turbochargers, a larger intercooler, a sports exhaust system and an optimized ECU. With all these mods in place, the engine develops 690 horses and an electronically limited 750 Nm of torque. The revised 0 to 100 km/h time is thus 3.2 seconds before going on to a top speed of 349 km/h. Customers can also disable the engine’s start/stop system and install a radar speed trap warning system that is integrated into the factory COMAND Online navigation system.