The Sable/Taurus design may seem boring now, with millions of them out there on America's roadways, but in the mid-1980's this car was revolutionary. The design was said to be "from the moon," and the curves and smoothness of the exterior was a stark contrast to the boxy and ugly K-cars that ruled the day.
There were 4 generations of the original Sable. The first lasted from 1986 to 1991, the second from 1992 to 1995, the third from 1996 to 1999, and the fourth from 2000 to 2005.
These cars were sold as 4 door sedan and 4 door station wagons. Engines ranged from an I4 to a Vulcan V6 and then a Essex V6.
There were some special editions of the Sable. They included the LS Monochrome Edition, which included white bumpers, side trim, and wheels, the LTS, which was the Mercury version of the Taurus SHO minus that amazing engine, and the 50th anniversary edition, of which only 50 were sold.
These cars were sold with either GS or LS trim. The LS was the higher end.
With literally millions of Sable sold, finding a used one should be about as easy as finding hay in a haystack. You can find some great deals by going online (if you're reading this page, you're already there) and checking out the deals on eBay. There are also thousands of parts listings on there. Use Google to find out how to do such things as engine swaps.