The twin-turbocharged 4.0-liter V8 was factory rated at 577 horsepower with 627 lb-ft of torque and features Camtronic cylinder deactivation and a plaque bearing the name of the engine builder.In December 2023 an oil change was performed and the spark plugs were replaced.Power is sent to all four wheels through a nine-speed AMG Speedshift TCT transmission, a dual-range transfer case, and three sequentially-lockable differentials.The cabin houses heated, ventilated, and power-adjustable front seats and a rear bench trimmed in black leather upholstery with diamond-stitched inserts that extends to the dashboard, center console, and door panels. Piano black accents the interior, and appointments include three-zone automatic climate control, COMAND infotainment with navigation, a Burmester surround sound system, and an IWC clock. Driving aids consist of Lane Keeping Assist, Distronic active distance assist cruise control, Parktronic, and front and rear cameras.The flat-bottom multifunction AMG Performance heated steering wheel is wrapped in black leather and features AMG Drive Unit performance controls and paddle shifters. Instrumentation is contained within a 12.3″ configurable digital display.The digital odometer indicates 2,400 miles.