Five Hundred- you mean Taurus?
Ford's Mark Fields announces Bold Move: Bring back Taurus & Sable brands - Autoblog

There was a reason why they killed that name in the first place. Probably because the last 10 years of production has consisted of rental-fleet trash with overall quality so poor it's laughable. My friend's father has one and it's quite possibly the worst-driving, worst-put-together car I've ever seen.