test drove the 335D today...M sport version and regular one also.
1. this engine is awesome!...love the torque...feels faster than the e36, e46 and e92 M3 I have had...even if it truly isnt faster, it feels like it is(0-60).
2. night and day difference between the sport version and non-sport...the sport version has a awesome solid feel...no "lightness" feel like the non-sport version...seriously doesnt feel all that much different to the M3(stock version anyway).
After driving the sport version I cant get myself to buy non-sport one due to the seats, ride quality, steering feel, no body roll.
I have driven a 335i loaner and wasnt impressed at all...felt like the 135i was a much better car...but this 335D sport is a unreal value imho.