Mercedes-AMG GT R was second-standalone model after SLS and is range-topping version. Powering this range-topping R variant is twin-turbocharged 4.0-liter V8 engine. It offers an output of 577hp and 700 Nm of torque in stock form and many consider it as Mercedes-AMG muscle car. The setup helps the GT R to accelerate from 0 to 62 mph in just 3.6 seconds before hitting the top speed of 198 mph. Majority of car fanatics will be pleased with the given performance specs. Nonetheless, there is always someone who looks to make it even more wild.
Germany based G-Power wants to extract more power from Mercedes-AMG GT R. Hence, aftermarket specialist is offering for different options that enhances V8 engine’s output. G-Power managed to extract an output off 789hp (800 PS) and maximum torque if 850 Nm. The extra performance is generated by combination of Performance Software V4 and other hardware modification to M178 motor. It consists of a racing fuel pump, weight-optimized forged pistons with reduced compression, modified turbochargers with larger turbine and compressor wheels. There is also CNC-optimized housings and enhanced compressor turbine blades. New components include intake system with sports air filters and downpipes with sports catalytic converters.
To manage extra 215 PS and 150 Nm of torque in Mercedes-AMG GT R, G-Power engineers reinforced seven-speed dual-clutch automatic transmission. If 789hp seems too extreme, G-Power is also offering Performance Software V3 combined with same hardware modification that gives 740hp and 800 Nm of torque. Next in range is Performance Software V2 that offers 681hp and 770 Nm of torque with flow optimized downpipes. Lastly, Performance Software V1 gives a satisfactory 641hp and 750 Nm of torque. Each of the power kits come with Hurricane RR forged aluminum rims shod with 275/30 ZR20 Michelin tires at the front and 305/25 ZR21 rubber at the rear.