This RENNtech Mercedes-Benz C63 AMG is the fastest C63 you'll find on the highway or at the track, courtesy of a thorough RENNtech tuning. It's no secret here at TrendHunter that I love fast luxury cars, especially if they're European and tuned to be even faster.
RENNtech's owner, Hartmut Feyhl, was technical director at AMG North America before he created RENNtech, so he's the perfect man to tune this car. This Mercedes-Benz C63 AMG got an ECU software upgrade that removed most of the speed restrictions, boosting the car's actual horsepower (451) to its factory 475 horsepower. It also got some high-performance software to optimize all aspects of the engine's capability.
Add a few more tuned performance parts, sport suspension, adjustable camber bushings to customize ride height, an improved brake system featuring carbon-fiber brake ducts, and the RENNtech Mercedes-Benz C63 AMG gains about 100 hp for a total of 548 peak horsepower and 510 pounds per foot of torque.
I'll take two.
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