The Mercedes-AMG E36 estate pairs practicality and performance into one powerful package. However, the minds at Vath weren’t pleased with the model’s pithy 603 bhp (516 kilowatts) from the E63 S, so the aftermarket specialist decided to crank it up to an astounding 879 bhp (655 kW).

The twin-turbocharged 4.0-litre V8 engine gets new Vath turbochargers, a larger intercooler, and a reworked exhaust system to raise the output. The tuner also installed a new exhaust system, replacing everything from the downpipes to the muffler, finishing it off with round Vath tailpipes. It’s not listed, but we suspect the car received an ECU flash, too, to make all the new hardware work together with the original equipment. 

Gallery: Mercedes-AMG E63 S Wagon By Vath

The added kit also increases the estate’s torque rating to 811 pound-feet (1,100 Newton-metres), much more than the stock 627 lb-ft (850 Nm) but also limited by Vath. All that power can propel the E63 S from 0 to 62 miles per hour (100 kilometres per hour) in 3.0 seconds. Vath also limits its top speed to 214 mph (345 kph).

Vath also enhances the car’s exterior design, replacing the 20-inch wheels with its own exclusive three-piece, 21-inch forged ones. Michelin rubber measuring 265 millimetres wide at the front and 295 mm wide at the rear wrap around the wheels. The tuner also adds its proprietary front lip and roof edge spoiler while lowering the car by 20 mm and installing underbody struts for additional stiffness.

Vath’s tuned Mercedes estate boasts massive horsepower and torque ratings, putting it on par with supercars. This amount of performance in a mainstream luxury car was unheard of 20 years ago, but automakers and tuners alike have made significant advancements in engine technology, finding new ways to bring massive amounts of power to the masses.

Vath’s tuning efforts will get more challenging when the next-generation E63 arrives as Mercedes plans to phase out the V8 engine. It’ll likely be a hybrid like other AMG variants, with the likely powertrain pairing a turbocharged 2.0-litre four-cylinder with a hybrid system. The setup makes 671 bhp (493 kW) in the C63 S Performance.