whats the estimated gas mileage a 850ci and an 840ci get?

I can't answer your question/s...but I wanted you to know that we just added a nice website dedicated to the 8 Series in our "Links" under "Internet and Email Groups" named "BMW 8 Series Worldwide Owners Group.

You should check it out! Click here and then links, then Internet and Email Groups: Bimmerforums.com's Main Page (http://bimmerforums.com/main.php?id=0)

Bob ///M3