Two questions on a 2016 E350 Wagon please

two inportant questions
1 - are all current MB E Class wagons ( AMG included) basically built on the same body shell? I am not referring to a sligthly wider fender or different ride heigths I am referring to the body panels and dimentions and inside room
2- my E350 has an E and an S mode The default is E mode The question is : is there a way ( Dealership or other) to keep the car on S mode at all times?
Thanks




two inportant questions
1 - are all current MB E Class wagons ( AMG included) basically built on the same body shell? I am not referring to a sligthly wider fender or different ride heigths I am referring to the body panels and dimentions and inside room
2- my E350 has an E and an S mode The default is E mode The question is : is there a way ( Dealership or other) to keep the car on S mode at all times?
Thanks






