Ingelheim am Rhein-based tuner Senner usually sticks to getting more power out of Audi's turbocharged sportscars and SUVs, but they also dip their tow into BMW and Mercedes waters from time to time.

The mightiest of all Mercedes models is likely the best way they could end the years, so they released an upgrade for the car's 6.2-liter V8 lump, pushing output and also enhancing the looks a bit.

The engine that normally makes 571 horsepower has had its ECU tickled to produce 606 hp. To go we... [...]

Source: autoevolution