PARIS (Dec. 14, 2016) — Mercedes-Benz A.G. has selected a specially developed version of Group Michelin's Pilot Sport Cup 2 tire as the exclusive OE fitment on the 2018 Mercedes-AMG GT R sports car.
The Pilot Sport Cup 2 tires for the GT R have an optimized profile and asymmetric tread design, along with a single rubber compound developed in motorsport series. This combination, Michelin said, gives optimum balance among handling, grip and endurance on track, as specified by AMG's engineers.
The GT R tire sizes are 275/35ZR19 front and 325/30ZR20 rear.
According to Michelin, the challenge was to design an ultra-high-performance tire that offered high levels of safety in a variety of road and track conditions without compromising on tire life. Michelin achieves this in path through "variable contact patch 3.0," a motorsport-developed technology that optimizes pressure in the tire's contact patch.
Development of the tire took 18 months, during which Michelin tested almost 900 prototype tires and 800 pre-series tires. These were extensively tested by both Michelin test drivers and AMG's engineers on a number of circuits, including Nardo (Italy), Nurburgring and Michelin's own Ladoux test tracks near Clermont-Ferrand, France, the tire maker said.
Mercedes describes the two-seat, two-door GT R as having "adrenaline-pumping performance dynamics," driven by a 577-hp, 4-liter biturbo V8 that yields a 3.5-second 0-60 mph time and a top speed of 198 mph. The street-legal version of AMG's GT racer comes in one color — "AMG Green Hell Magno" in a nod to the nickname for Germany's Nurburgring, the 26-mile race course that car makers use as a benchmark for their performance offerings.
AMG is Mercedes' in-house performance tuning business.