World's Fastest CLK 63 AMG Black Series Breaks Record

When Mercedes-Benz let AMG go all-out on the CLK 63 AMG Black Series, it was one of the first great-handling road cars to ever come out of Affalterbach, as all previous ones were mostly about straight line speed, with only the racing AMG models to also love the twisties.
Mercedes-Benz CLK 63 AMG Black Series 1 photo
Photo: Weistec/YouTube
The widened chassis was all about the track, while the 6.2-liter naturally-aspirated behemoth of an engine gave quite a bit more oomph than it needed.

With parts of the M156 engine borrowed straight from the M159 mill of the Mercedes-Benz SLS AMG, the CLK's V8 developed 507 hp and 630 Nm (465 lb ft) of torque, giving the car a naught to 100 km/h (62 mph) time of just 4.3 seconds and an electronically-limited top speed of 300 km/h (186 mph).

While not being the model's raison d'être, a stock CLK 63 AMG Black Series could do the quarter mile in about 12 seconds right from the factory. That is far from being a slow time, but the car would definitely need quite a lot of costly modifications on its naturally-aspirated engine in order to improve its specifications.

Well, as it turns out, that is exactly what the hardcore tuners from Weistec Engineering did to a customer's car, fitting the ol' CLK 63 AMG Black Series with their own three-liter Weistec twin-screw supercharger and a host of other Weistec goodies.

To put into perspective, the car in the video below puts around 1012 hp and 1356 Nm (1000 lb ft) of torque at the rear wheels now, to the point that it would probably need a wheelie bar.

Because of these insane numbers, the rear differential sports an ice box to keep everything cool after each drag run, despite the fact that the car is still street legal.

With that being said, the car in the video below is currently the fastest-accelerating street legal Mercedes-Benz on the entire planet, its 9.16 seconds at 241 km/h (150 mph) time at the quarter mile being pretty much untouchable at this point.

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About the author: Alex Oagana
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Alex handled his first real steering wheel at the age of five (on a field) and started practicing "Scandinavian Flicks" at 14 (on non-public gravel roads). Following his time at the University of Journalism, he landed his first real job at the local franchise of Top Gear magazine a few years before Mircea (Panait). Not long after, Alex entered the New Media realm with the project.
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