The GT 63 Pro has more power, better aero and bigger brakes, because sometimes more is more.
has enough muscle? Relax. The folks at Affalterbach have your problem solved. The 2025 Mercedes-AMG GT 63 Pro 4Matic+ packs 26 more horsepower, 37 lb-ft more torque, and will get from a standstill to 124 mph in 0.5 second quicker than the regular GT 63 en route to a top speed of 197 mph.
“It’s the perfect blend between the day-to-day usability of the GT 63 and a racetrack tool,” says Mercedes-AMG CEOThere are no new go-faster bits under the hood; the GT 63 Pro’s 4.0-liter twin-turbo V-8 is mechanically identical to that of the GT 63. The extra muscle is all down to software that enables that wonderfully versatile AMG powerplant to produce 603 hp from 5,500 rpm to 6,500 rpm, and 627 lb-ft of torque from 2,350 rpm to 5,000 rpm.
There’s more to the GT 63 Pro than just engine software, however. To make it a better track-day car, AMG engineers have increased airflow by way of a redesigned front fascia and upgraded both the high and low temperature cooling circuits to ensure optimal drivetrain temperatures.
The GT 63 Pro also gets revised aerodynamics for better high-speed balance, with an active air control system in the restyled front fascia, active underbody aero, and the fixed rear wing from the AMG Aerodynamics Package. Michael Schiebe says front axle lift has been reduced by over 66 pounds, while the rear wing—working in conjunction with underbody air deflectors like those on the Mercedes-AMG ONE hypercar—has increased rear axle downforce by 33 pounds.
The Mercedes-AMG GT 63 Pro 4Matic+, which is expected to arrive in U.S. Mercedes dealerships early next year, won’t be the ultimate AMG GT. Michael Schiebe won’t be drawn into revealing more detail, but he insists Mercedes-AMG is “100 percent committed” to customer racing. And that means there will almost certainly be a more extreme
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