I drove the M5CS this morning, and the stand out feature, without question, is the suspension. It sits 7mm lower than the Competition LCI, but the compliance it has, is a revelation. It feels far more comfortable, without any thumping/skipping, or sometimes being knocked off line, by the smallest bumps in the road. It feels much better suited to our back B roads, and seems to take them all in its stride, with outstanding composure, it really is a big difference. Cant say i noticed a big improvement in straightline performance, over my own car, but felt like i would like to attack the road more because of the suspension. I loved the bucket seats, they were very, very supportive, and along with the alcantara steeringwheel, made the ****pit feel that much more racy. Overall, the CS does feel like a CS version, if there is such a statement ?, but, but, there is always a but, im still not converted on the price. Its a truly fantastic machine, and i would love that suspension, and the feeling of maybe more confidence it instills, but i just dont think its £50k better than my own car ?.