BMW specialist AC Schnitzer has become fond of record setting recently, and they always head to Hockenheim Ring for this purpose. The latest product they took to the circuit to set a lap record with is the AC Schnitzer BMW ACS1 5.0 based on the 1 Series 120d diesel, and it managed to become the fastest diesel car ever to lap the legendary track.

The hotted-up AC Schnitzer BMW ACS1 went round the Hockenheim short circuit in 1:13.80 which, the tuner tells us, is sports car pace… in a diesel hatchback.

The tuning program for AC Schnitzer BMW ACS1, in terms of power and performance, includes the addition of large intercooler, modified software, and a custom exhaust system with 2x lambda sensor connections, 200 cell motorsport catalysts, and large 76mm tubes. In the case of the 120d model these mods result in an output of 218 hp and 455 Nm of torque (standard 180 and 380). AC also offers various aero parts for the 1 Series including a one or two piece front spoiler for cars with or without the M kit, rear roof spoiler, and new tailpipe designs. As always, there is also a wide range of wheels to choose from and lowered suspension to go with it.