I drove a 335i with and without adaptive suspension and immediately added the suspension to my shopping list. It's awesome. The variable Sports Steering is a gimmick you'll NEVER use because it's just a faster rack over 100 degrees of lock. Bovvered. The servotronic is what matters and that's standard on the M Sport anyway
For me, Xenons were an absolute must and it's criminal they're not standard on a £36k car
and adjustable lumbar too for that matter, but then I have back trouble and drive quite a lot