I wanted to comment that i just drove over the Beartooth Mountains on highway 212 driving our 2551 (E450), did not pull the Fit this time, but bride followed.
While the highway rises about 5,500 feet from Redlodge in about 18 miles and is a series of switchback, had not problem, traveled at about 35 to 45 and keep RPMs in range of 2800 to 3200.
I had read on some sights that this was a road that might want to be avoided. We stayed at the Island Lake campground and had a great weekend. It would be a shame to miss such a spectacular site.
Greg