CR is full of goofballs.
Go check out their car review issue. What rating do they give the Grand Cherokee for reliability?
Now, go back to the data. All good, very good, and excellent. Not one balck of half-balck rating for the last 2-3 years. Yet, full black final rating. What gives?
They are obviuously cooking the books.
Mechanicaly, the two are very simmilar, other than options and engines. The only real difference are the econoboxes and Cadillacs - where the Mercedes like electronic nightmare/testbed occurs.
Buicks were plusher. Slightly older age bracket.