So I swapped my 12’ 328i for a 13’ 335i recently.
Noticing some build differences, which may be a MY thing or model thing.
I mentioned them to my dealer, and he said they had to do with it being a 335i (he claimed BMW puts a little more into it than just the engine)
First thing he said was the doors close differently! I didn’t believe him, but the 335i doors did seem to feel..heavier...due to the hinges used not the actual door.
Regardless, if its true or not, I don’t care.
One thing I was happy about was the lining of my sunroof exterior. On my 328i, when I wiped over the sunroof while washing the car or drying it, there was this “felt” material around the brim of the sunroof, which would catch lint and dust off the towel and was impossible to clean.
On the 13’ 335i the rim of the sunroof is a hard rubber, no felt.
Just wanted to share an observation