How many valves does a 2007 Ford Taurus have?

I'm interested in buying one off of craigslist and the owner doesn't know, all they know is its a 3.0 v6 engine. After doing some research the general consensus seems to be that the 3.0l 12v vulcan engine is the way to go in terms of reliability as apposed to the "3.8l 24 valve dohc duratec engine". Upon looking up the 2007 model it seems as though it only comes with a 3.0 v6 but it doesn't specify how many valves it has. I understand I'm probably not using the right terms here so feel free to correct me. I'm not very mechanically inclined. I appreciate any help here in making an informed decision

The more important question is - are you going to be smart and pay for a mechanic to inspect the vehicle before buying?

There was no 3.8L Duratec. The 3.8L was the Essex V6, the last year for it in the Taurus was 1995. It's not DOHC engine, it's OHV (pushrod), engine like the 3.0L Vulcan. The Duratec is noticeably more powerful than the Vulcan

In 2007 there was only one engine available, the 3.0L Vulcan, the 3.0L Duratec's last year in the Taurus was 2005. The Vulcan has two valves per cylinder, so it has 12 valves total. Most 2005+ Tauruses were fleet sales, fleets buy primarily on price, so it didn't make sense to offer a more expensive engine option. Ford did use the Duratec 3.0L in the ill-fated Ford Five-Hundred and the much more successful Fusion and Escape.