4: Mercury Mountaineer
The Mountaineer was released to capitalize on the popularity of the Ford Explorer and it was basically the same. The interesting thing about the Mountaineer is that it offered the capable 5.0L V8 engine. You might say that the Mountaineer was the Navigator before the Navigator was released.
As time went on, Ford put less and less effort into the Mountaineer until the brand was phased out altogether. The Mountaineer is often forgotten by enthusiasts but the SUV was one of the most notable ones of the 1990s. The Ford Explorer underpinnings proved to be quite capable at going off-roading and the luxury-appointed interior was a nice touch.