In reading the M Performance Adjustable Coilover announcement it sounds like they are describing a height adjustable spring kit vs. a coilover kit like the one shown.
The adjustable M Performance coilover kit comprises of a KW spring kit with a manually adjustable perch that goes over the standard car’s shocks. The purpose for keeping the same shocks is to insure the quality and dependability of the suspension. Along with the springs, the BMW M Performance coilover kit comes with specifically tuned spring rates, bumpstops and other various hardware to maintain reliability. If bought through BMW and installed by a BMW technician, the car will retain is full manufacturer’s warranty. The coilover kit is able to lower the car from anywhere between 5mm and 25mm. The M2 at the SEMA auto show was shown with a 20mm drop.
Is BMW M Performance releasing both a coilover kit and a HAS kit?