My family has 4 vehicles on this platform. 2 freestyle's(one was dads, nowcmy sister's, the other dad's twin brother), an 09 Taurus( mom's), and an 09 Sable(mine)
If at all possible, I would look at an 08-09 Taurus/Sable. Cosmetic changes inside and out, different engine and trans(3.5l cyclone/6f vs duratec 3.0/CVT), different (more reliable) ac compressor..