850hp E63 AMG Tuned by Weistec

We found this video of Matt Farah flogging a Weistec MB E63 AMG that produces an estimated 850hp at the crank. He proceeds through his usual antics doing smoky burnouts and rolling acceleration “tests” through Orange County, California’s hills. However, he mentions that as soon as he left Weistec’s shop the air conditioning failed along with the paddle shifters, thereby rendering the car an absolute automatic.

Is this the kind of thing that you’d be willing to put up with out of a tuned 850hp car? Obviously, if this was your car Weistec would address the situation (hopefully, for free); but is this an acceptable side effect? Also, is the decrease in reliability and lifespan of powertrain components worth it? Watch the video and let us know!

And now there’s this in our own forums (although it’s tuned by Renntech, not Weistec)…