I LOVE MY SEATS, so I can't help you with that one. As for mileage, it sounds like you are getting the exact same kind of mileage that I get in my awesome 1995 E320. I also get a rather dramatic improvement when driving all highway miles.

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I just couldn't give up on my 1995 E320.

I think it might be like always going back to that same bad relationship with an ex girlfriend.
You feel you love them too much, or you are just too stupid to know any better.



Flickr slideshow of my 1995 E320
http://www.flickr.com/photos/24145497@N06/sets/72157616572140057/