[RM7]

Do you have massaging seats?

You should watch the new Doug video on the Mercedes S class. I don't know how much of that tech is similar with BMW, but that gives you a great insight into what the top-dog car in their lineup has. In short, lots of stuff and the stuff that is similar is simply much more advanced or better. It's like a freaking spaceship on wheels.

The real issue is always marginal gains for lots more money. It's ALWAYS been like this. Luxury cars are going to have lots of features that you rarely or sometimes never use. To get that higher level of materials, comfort and features, you are going to pay something like 50% more, but is it 50% more comfortable and better? No, it's probably only like 20%, and that's basic business economics. But if your standard is that higher level, it's a no-brainer. Or maybe you can't live without something that is inherent to that car, like the rear space. As in, if you are going to be carrying around family members, the 335 isn't horrible, but it's still pretty cramped. Something like a 7 or 8 is much more of a "big family car" where everyone can be fairly comfortable at the same time, possibly for much longer distances too.

But those vids where they discuss all the features will give you the insight into this.