Brabus is prone to tune almost every vehicle with an AMG badge on it, and that means the GLE 63 SUV couldn’t escape the German tuner’s customization spree.

As one of the latest addition to Brabus’ curriculum, Merc’s GLE model doesn’t bring anything new to the table, especially as its much sportier sibling (the GLE Coupe) has already crossed the tuner’s agenda.

Boasting 700 PS (690 hp) from the modified 5.5-litre twin-turbocharged V8 – 115 PS (114 bhp) more over the standard 585 HP (576 bhp) output – might not sound like much, but for this to happen Brabus performed numerous modifications to the mill, including two special turbochargers with larger compressor units and Gold Heat Reflection sheathing intake pipes.

The new components coordinate with the new mapping for ignition and injection, uprating the torque figure as well. Now, the peak torque was increased to 960 Nm (708 lb-ft) making the car get from 0 to 100 km/h (62 mph) in 4.0 seconds, stopping from accelerating at 300 km/h (186 mph).

Of course, if this isn’t enough for the average GLE 63 owner, Brabus is willing to take things to extreme, bumping the power of the 4×4 to supercar-worthy performance figures. The 850 program squeezes – you’ve guessed it – 850 PS (838 bhp) and 1,450 Nm (1,069 lb-ft) of torque from the same powerplant, making the 2,150 kg car sprint to 100 km/h (62 mph) from standstill in 3.8 seconds all the way to a 320 km/h (200 mph) electronically limited top speed.

Aiding the performance gains is Brabus’ aero, carbon-fiber kit, which includes a front spoiler lip, side air intakes, tailor made deflectors, a diffuser, and other naked carbon components.

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