VIDEO: RENNtech C74 with Akrapovic Full Titanium Exhaust

A little over a month ago, RENNtech unveiled the C74, a menacing, wide-bodied Mercedes C63 AMG. While it looked great with its DTM-racecar-inspired bodykit, the Florida-based tuner wasn't really satisfied with how it huffed and puffed. Enter the Akrapovic full titanium exhaust system, which lightens the car by 43 lbs (20 kg) and squeezes out 12 extra ponies and 16 lb-ft (22 Nm) of torque, giving it a truly angry bellow. Check out the video after the break to hear it for yourself.

By Csaba Daradics

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Mercedes-Benz C63 AMG Receives Power Boost by Wimmer RS

When it comes to German tuners, the name of the game is power. The more the merrier. In its latest take on the Mercedes-Benz C63 AMG, Wimmer RS has presented the Level 3 performance kit, which increases the 6.3-liter V8 engine's output to 580-horsepower and 690 Nm (509 lb-ft), up from 457 HP and 600 Nm.

To bestow over 120 HP on top of the already potent naturally aspirated V8, Wimmer RS made a series of upgrades including the addition of a reprogrammed ECU, air filter from K&N, air induction optimization, a new sports catalyst and optimized cat-back all-stainless steel exhaust system.

The tuner also fiddled around with the the electronic speed limiter allowing the C63 AMG to reach a limited top speed of 305 km/h or 190 mph.

As an option, Wimmer RS offers a KW-Club Sport Suspension and high performance Dunlop Sport Maxx GT tires.

The cost of the full performance level 3 kit is set at €9,900 (about US$13,800 at today's rates) including installation.

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Are these Official Drawings of the 2011 Mercedes-Benz C-Class Facelift?

Definitely take this with a grain of salt, but Autobild has published some allegedly official drawings of the facelifted 2011 Mercedes-Benz C-Class saloon. There's a possibility they may be sourced from some kind of promotional material, but they could also be faked - we're, just not sure.

In any case, the sedan model pictured here appears to feature the same styling changes seen on recent prototype models (check out our scoop pictures here), most importantly the redesigned front end with the "L" shaped headlamps and re-sculptured bumper, as well as the revised dashboard that encompasses the upper part of the center console.

The revised 2011 Mercedes-Benz C-Class range, which will see the introduction of an all-new coupe model, will go on sale in spring 2011.

Source: Autobild

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Wimmer RS and Dunlop team up to create a 190-mph Mercedes C63 AMG Racer

Wimmer RS has turned its attention to the Mercedes-Benz C63 AMG to create the Dunlop Performance show car. The performance is there, so don't worry about the looks for now; this is just a rolling ad. What's under the vinyl and stickers is what Wimmer can do for the C63.

The car's electronically-limited speed has been elevated to 308 km/h (190 mph) thanks to reprogramming the ECU; with the addition of a flurry of intake and exhaust mods, the car puts down 540-horsepower (+53 hp over stock hi-po V8). Torque figures have not been released.

The speedometer hits the 100km/h (62mph) mark after 4.4 seconds (traction control issues, perhaps?) and then the next 100km/h goes by in another 8.2 seconds (0-200km/h or 124mph: 12.6 sec). Keeping the car planted on the ground is a KW3 coilover setup hidden behind 19-inch rims and possibly unmodified brakes (Wimmer didn't mention anything in the press release).

Now, for the real shocker: the 19s are wrapped in...drum roll please...Dunlop Sportmaxx GT tires (sized 235/35-19 in front and 265/35-19 in back).

According to Wimmer, the car seen here took place at the 2010 Tuner's Grand Prix at the Hockenheimring in Germany where it won runner-up. Nifty.

By Phil Alex