I have the standard suspension and trust me when I say that it comes nowhere close to how plush Mercedes suspension system are. I would recommend buying an aftermarket adjustable air suspension system but make sure you buy the right type!

I think you'll want to consider an adaptive air suspension where you can set how plush you want the ride.

This video may help to give an idea of what I mean:

https://www.youtube.com/watch?v=dTrupjf-QFQ