Originally Posted by aajami
Here you go:
Skip to 2:54.
I'll ask around about the GTS/CRT subframe mounts.
The M3 GTS and CRT both utilize the same subframe. Also, they do not have separable bushings. The subframe is simply designed as a solid mounting piece.
Think of it as the bushings being welded in.
I will also reiterate this, having solid sub-frame bushings will NOT degrade ride quality. This is what happens with solid driveline bushings (motor, transmission, differential).