Well, I totaled my W211 E350 at 170k mi and had to find a new car in a hurry. I ended up with a 2014 E550 4matic with 133k mi. My assessment after a few weeks:
Pros:
-Fewer miles and the suspension is still pretty tight
-Quieter because the E350 needed a new bearing in the diff
-Leather, ventilated seats
-2 more cylinders
-1 free turbo with each extra cylinder
-More HP
-Less banged up rims and body
-Cool looking headlights
-2 more speeds in transmission
-No windshield pitting
-Cameras AND sonar sensors
Cons:
-Rear headrests don't go down all the way
-Center clock
-Lock mechanism on doors instead of center console
-Some headlight elements are already very yellow
-Wood is faded
-Some exterior chrome is peeling
-Front camera lens is completely shattered
-Cam sensors and magnets are leaking oil :O
-Washer bottle is broken and leaks (a lot)
-Coolant line to washer bottle is leaking (a tiny bit)
-Some kind of oil hose is leaking (just barely)
-Windshield washer stalk is on the left
-Column shifter
-No rear side sunshades
-I need to debadge it which at this point will require some paintwork
-Instrument cluster no longer says VDO
-Less space to work under the hood (but worth it)
-Seal around trunk lock is missing so water gets inside the trunk lid
Overall it's a big upgrade and the car looks sick. Been driving the hell out of it even as I wait for parts to arrive.
Pros:
-Fewer miles and the suspension is still pretty tight
-Quieter because the E350 needed a new bearing in the diff
-Leather, ventilated seats
-2 more cylinders
-1 free turbo with each extra cylinder
-More HP
-Less banged up rims and body
-Cool looking headlights
-2 more speeds in transmission
-No windshield pitting
-Cameras AND sonar sensors
Cons:
-Rear headrests don't go down all the way
-Center clock
-Lock mechanism on doors instead of center console
-Some headlight elements are already very yellow
-Wood is faded
-Some exterior chrome is peeling
-Front camera lens is completely shattered
-Cam sensors and magnets are leaking oil :O
-Washer bottle is broken and leaks (a lot)
-Coolant line to washer bottle is leaking (a tiny bit)
-Some kind of oil hose is leaking (just barely)
-Windshield washer stalk is on the left
-Column shifter
-No rear side sunshades
-I need to debadge it which at this point will require some paintwork
-Instrument cluster no longer says VDO
-Less space to work under the hood (but worth it)
-Seal around trunk lock is missing so water gets inside the trunk lid
Overall it's a big upgrade and the car looks sick. Been driving the hell out of it even as I wait for parts to arrive.