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2010 RENNtech C74 Konzept

Built as a show car for RENNtech’s C63 tuning platform, the C74 Konzept has numerous detail upgrades that show what is possible on the C-class platform. The show car is tuned to produce 605 bhp. The result is a sedan that can do the ¼ mile in 11.4 seconds @ 126 mph with an overall top speed of 204 mph.

Press Release

As the worlds foremost Mercedes-Benz/AMG tuner, RENNtech unveiled their latest project vehicle at the 2010 Festival’s of Speed in Orlando, Florida. All performance modifications and exterior aerodynamic modifications were designed, developed, and tested in house at RENNtech’s facility located in Lake Park, Florida.

The C74 is the latest variation of RENNtech’s C63 AMG project vehicle which has seen continual transformations throughout its life, serving as a working test platform for RENNtech’s proprietary line of performance products. The C74’s current trim boasts incredible performance from the 6.2L AMG V-8 with a wide stance and aggressive look to match. The “74” designation given by RENNtech, refers to the 74 inch width of the rear wheel track which lies beneath the body work of the C74’s muscular rear end. This allows the ability to run up to an 11” wide rear wheel with a 315 series rear tire for the ultimate in handling and traction. The number also pays homage to the legendary RENNtech V12 “SL 74”.

This package is available now starting at $11,950.


– Full Carbon Fiber Widebody kit (prototype shown)
– Carbon Fiber Rear Decklid Spoiler
– Carbon Fiber Front Splitter – Carbon Fiber Rear Diffuser w/ Integrated Exhaust Tips
– 19 x 9.5” Front / 20 x 10.5” Rear Signature 3 Piece Forged Aluminum Wheels
– Nitto INVO Performance Tires
275 / 30 / CR 19 Front
305 / 25 / CR 20 Rear


– RENNtech Carbon Fiber Airbox and High Performance Air Filters
– Custom Air Inlet Panel (prototype)
– 82mm Throttle Bodies
– Upgraded Camshafts
– Modified Ported and Polished Cylinder Heads
– RENNtech ECU / TCU Software Upgrades – Stainless Steel Headers
– Sound and Performance Pipe
– 100% Locking Limited-Slip Differential
– Fully Adjustable Sports Suspension – Performance Braking Package stage 3 by RENNtech
– Carbon Fiber Front and Rear Stabilizer Braces


– Engine: 6.2L V-8
– Power: 605 HP @ 6000 RPM and 555 LB-FT
– ¼ mile: 11.4 sec @126 MPH
– Standing Mile: 185 MPH
– Max Speed: 204 MPH
– Rev limit: 7400 RPM

In Detail

type Concept / Prototype Car