Warning, this subject is old (5796 days without answer)
Ddey65
The first "unknown" looks like a downsized Cadillac of the late-1980's. The Ford F-150 was made between 1982 and 1986.
dragonboy3000
http://www.imdb.com/title/tt1114677/
These images are from the trailer. They are also the first time for me that the images are larger than usual due to the trailer being in HD so can warrant the larger size due to the better quality.
1982-86 Ford F-150
Lincoln Town car Stretch Limo
Cadillac
Unknown