I drove one in the late 80's from UK to southern Spain - it was a FF MkII renovated and respecked to MkIV by the factory with a 5.9 injection Chrysler block. It barely got into double digit MPG and fuel vapourisation in hot Madrid was a pain, but on the open road was a dream mile eater. AWD permanently on and also ABS based on the Maxaret system.
This is the actual car (it is white, albeit the picture veers towards silver).