Got no other choice than keeping the suspension stock.
Got to frequently enter a parking facility with a nasty entrance bump. Could not avoid to scrape the 1M bumper from time to time. Hence, lowering my M2 is definitely a no go.
Ground clearance (from higher to lower):
- BMW M2 = 123mm or 4.84in (source: here)
- BMW 1M/M3/M4 = 120mm or 4.72in (sources: here, here and here)
- Cayman GTS = 112mm or 4.41in (ramp angle: 11.3° | approach angle: 9.2° front and 14.4° rear) (sources: here and here)
- Cayman GT4 = 105mm or 4.13in (ramp angle: 10.2° | approach angle: 6.0° front and 13.3° rear) (sources: here and here)