The latest tuner targeting the 4-door Porsche Panamera is aftermarket specialist Schmidt Revolution who presents a light upgrade in terms of both appearance and performance for the 4S variant.
The performance upgrades were suggested by motor racing tuner Rennsport Muller and include a 40 mm lowering of the car’s adaptive air suspension (390 Euros), a sound optimisation of the original exhaust system (590 Euros) and an engine optimization software priced at 990 Euros which allows the 4.8-litre V8 to unleash 425 HP and 535 Nm of torque instead of 400 HP and 500 Nm.
The exterior of the black Porsche Panamera 4S has been enhanced trough a set of matt black one-piece rims from Schmidt Revolution which measure 22 inch in diameter and are wrapped in tires size 265/30R22 at the front and 305/25R22 tires at the rear. These custom wheels cost 4,900 Euros.
According to Schmidt Revolution a complete leather package for the interior is also on its way. 

Source: Schmidt Revolution