This 2012 Mercedes-Benz CLS550 4MATIC has been modified with a RENNtech ECU tune, and is powered by a twin-turbocharged 4.6-liter V8 that drives all four wheels through a seven-speed automatic transmission. Finished in black over black leather upholstery, the car is further equipped with a glass sunroof, bi-xenon headlights, 18″ five-spoke AMG wheels, heated and ventilated power-adjustable front seats, wood interior trim, a Harman Kardon sound system, and COMAND infotainment with navigation. Acquired by the selling dealer in 2025, this C218 CLS550 has 71k and is now offered at no reserve with service records, the owner’s manual, a clean Carfax report, and a clean Florida title. The car is finished in black and has bi-xenon headlights, a glass sunroof, heated side mirrors, a rear spoiler, RENNtech badging, and dual exhaust outlets. The 18″ five-spoke AMG wheels are mounted with Continental tires. The car is equipped with Electronic Stability Control as well as an AIRMATIC air suspension with four-wheel level control and an Adaptive Damping System (ADS). Stopping power is provided by cross-drilled front and ventilated rear rotors. Two tires were replaced in December 2024, and multiple wheels have curb damage. The heated and ventilated power-adjustable front seats are upholstered in black leather, while wood trim accents the cabin. Additional appointments include front seat position memory, Keyless Go, a rearview camera, dual-zone automatic climate control, ambient lighting, a Harman Kardon sound system, and COMAND infotainment with navigation. The leather-wrapped steering wheel fronts a 160-mph speedometer with an inset digital information display as well as a tachometer and gauges for fuel level and coolant temperature. The digital odometer indicates 71k miles. The twin-turbocharged 4.6-liter V8 has been modified with a RENNtech ECU tune. An oil change was carried out in July 2025. Power is delivered to all four wheels through a 7G-Tronic seven-speed automatic transmission and a 4MATIC all-wheel-drive system. Additional photos of the underside are provided in the gallery. The Carfax report is free of accidents or other reported damage.