Alright RENNtech, you got us good. When we first saw C74 Konzept in our inbox, our jaws dropped assuming that RENNtech went above and beyond, taking a Mercedes C63 AMG and overhauling the power plant to a 7.4L monster. But then we took a stab in the heart when we read the actual release to reveal that the “74″ refers to the 74-inch width of the rear wheel track. Not as exciting as 7.4L in a C63 AMG, but the project is still wicked, looks great and performs even better.
On the exterior, the body benefits from a full carbon fiber widebody kit along with a carbon fiber rear decklid spoiler, front splitter and rear diffuser. To give the C63 the look it needs now that it’s been widened, a set of RENNtech wheels are staggered with 19×9.5-inch size in the front and 20×10.5-inch size in the rear. And even more impressive is the fact that they outfit the wheels with 275/30/19 and 305/25/20 tires.
As for performance, RENNtech specializes in Mercedes-Benz and AMG tuning, so it’s no surprise that the 6.2L now pumps out 605-hp and 555 ft-lbs of torque. Performance upgrades include larger throttle bodies, upgraded camshafts, RENNtech’s ECU upgrade, stainless steel headers and ported and polished cylinder heads.
The brakes are also upgraded with RENNtech’s performance brake package and handling is enhanced with fully adjustable sports suspension and carbon fiber front and rear stabilizer bars.
Delicious… but hey RENNtech, why not build out a nice 7.4L AMG V8? Or another V12?

http://www.autoguide.com/auto-news/2010/10/renntech-mercedes-benz-c74-konzept-released-ahead-of-sema.html

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