In one of the silliest tuning programs we’ve seen in a long time, Swiss firm Dähler has fitted a BMW M2 with the S55 straight-six engine from a BMW M4. It’s silly because the M2’s own straight-six unit is pretty much the same as the one in the M4!

So they could have just tuned that one, but for some reason they decided to first swap one straight-six turbo for the other and then tune it. The result is that Dähler BMW M2 now boasts a massive-for-its-size 540 horsepower and 730 Nm of torque, which translates into a 0 to 100 km/h time of less than 4 seconds and a top speed of 320 km/h.

Other modifications fitted to Dähler BMW M2 are less ridonculous and include a coil-over suspension system with up to 18 levels of rebound and compression adjustment, 8-piston high-performance brakes with 400mm discs up front, stainless steel exhaust system, MID display system and an aero kit consisting of a modest front spoiler and an optional rear wing. Also available for Dähler BMW M2 is a set of the tuner’s own CDC1 20 or 21 inch wheels.

Dähler also offers “regular” upgrade kits for M2s with their own engine, boosting their output from the standard 360 to 408, 430 or 450 horsepower depending on your courage and wallet size.