It’s a well-known fact that the OEM springs are totally
wrong for the Z4M and give it a harsh crashy ride. For the track we chose to
fit the KW Clubsport kit which is awesome and surprisingly much
better on the road than the OEM kit!
We were also able to lower the car a bit and add some camber (-3 deg) which looks and drives much better now!
Before - look at the body roll!
After with KW Clubsport Kit - Much flatter