That’s differne to my experience.
I had all three e46: saloon 328. Touring 330d and coupe 330d. All with m sports suspension I never found much difference in handling
I also had and e46 m3, not CS, which I never really gelled with, as that followed an RS4 biturbo.
I guess it’s alk about perception. What came before, what followed, type of driving etc.
All good satisfying cars to own and run though
Aren't E46s reknown for rear suspension and subframe problems? Maybe Rich's had a knackered rear end.