European Auto Source’s AC Schnitzer ACS4 build

European Auto Source, a California-based tuner, has worked in cooperation with AC Schnitzer and a few other aftermarket companies to create this BMW M4 project. Dubbed ACS4, it hosts a number of aero upgrades and performance parts.

With the AC Schnitzer and BMW M Performance parts added, this simple Austin Yellow M4 is transformed into a new being. It has AC Schnitzer’s carbon fiber front spoiler elements, CF front side wings, F80-F82 front splitter, rear diffuser and a racing rear wing. Prepainted front bumper reflectors from IND and BMW M Performance side blades in gloss black, mirror caps, kidney grilles and sidemarkers were added.

For the interior, the car got Sparco seats, BMW GTS steering wheel, AWRON gauge, and complete AC Schnitzer package with aluminum handbrake handle “Black Line”, aluminum pedal set, foot rest and black floor mats.

The power is upgraded to 600 horsepower, thanks to an ESS Stage II Turbo upgrade with a Stage II ECU flash along with Evolution Racewerks aluminum charge pipes and Eventuri carbon Kevlar intake system. To help with the stopping power, Sparta Evolution TS260X Triton 6-Piston BBK 380mm were also added.