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724bhp Mercedes-AMG GT Track Series debuts as Affalterbach’s most powerful sports car

Pushed the envelope quite far with Black line, Mercedes-AMG has developed an even more extreme and illegal version of GT.

Dubbed the Mercedes-AMG GT Track Series, it uses a version of the Black Series’ 4.0-liter twin-turbo V8. Thanks to motorsport-specific fuel injectors and other unspecified tweaks, it produces 724bhp, up from 710bhp. The Black Series seven-speed dual-clutch transmission is also gone, being replaced by a six-speed sequential racing gearbox from Hewland. This remains in the ‘horizontal’ position at the rear of the car, driven by the engine via a carbon fiber torque tube.

In front of the suspension, the Track Series features a height-adjustable Bilstein dampers along with a degree of rebound and compression at low and high speeds. The anti-roll bars can also be tweaked.

The 18-inch forged wheels ride in 325mm wide slick tires at both ends. Under these you’ll find large sports car-friendly steel brakes. At the front, there are 390mm disc-forced six-piston brake calipers, while at the rear AMG has fitted a 355mm rotor and four-pot calipers.

To complement the high level of mechanical grip that the Track Series’ chassis certainly provides, the vehicle is also fitted with highly developed aerodynamics to maximize downforce. The most obvious feature of this is the height-adjustable rear spoiler, based on the one fitted to the Black Series. At the other end of the car is a separate and also adjustable splitter.

As a dedicated race car, the Track Series is able to strip most of the comforts of a road car for its compact cabin, although you still get air conditioning. To keep occupants safe in the worst-case scenario, there’s a roll cage bolted to the car’s spaceframe construction, plus a five-point harness for the bucket seat and fire extinguisher system.

The steering wheel is a custom design developed in collaboration with racing simulation company Cube Controls and behind is a Bosch Driver Display unit that replaces the car’s gauges. Elsewhere in the cabin are knobs for the 12-speed ABS and traction control system.

Thanks to its backrest and the use of carbon fiber for many of the body panels, the Track Series has a very reasonable weight at 1400kg. However, this is 100kg more than an AMG GT3.

The Track line costs from €369,000 (about £307,000) plus local VAT. Included in that figure is technical support from HWA AG, best known for developing CLK GTR racer of the late ’90s. Only 55 will be produced, in a nod by AMG to its 55th anniversary in 2022.

Read our review of the Mercedes-AMG GT on the road here…

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