Harry the fact the 500's (2005-2007 only years sold before mods and name change to Taurus) are first generation (1998-2006) Volvo S80 chassis's with Ford 3.0L engines and the Aisin Warner AWF21 transmissions used by many cars in Europe and Asia that is owned in part by Toyota. It is very good but being a 6 speed it does shift more than a 4 speed for sure but is in part how they can get up to 30 MPG on the open road.
Being messed up with arthritis getting in and out of the wife's old towncar was the reason I was looking for another pickup to replace my dying blazer. When I read Five Hundred Ford set was 4.5 inches higher than the average I left the office and went to look at one where I was looking at a 2001 Sport Trac. The 500 fit me and gives me the best vision ever. It fits my 6'4" son as well.
Our 2006 looks clean all around and today I had the bottom side checked out and it actually looks new like being a TN car. It turned out to be the SEL version so the leather seats helps me side in and out better. I am going to keep my eye out for another one down the road. The towncar (2000 with 175K miles) is now kind of a back up car since we have four drivers. Some how the 18 year old twins are putting about 2000 miles a month on their trucks but a trip to town and back will rack up 50 miles to Mayfield or Murray or 100 miles to Paducah KY.
The Ford dealer gave $3K for it clean with 110K miles and I gave $5K and about all it needed was tires. We both would have been $1000 ahead if we would have talked before he traded.

Well not really because if it had not been on the dealers lot I would most likely found it but their website promoted it well. The wife drove the car but when purchased the husband sold Fords and the dealership serviced it every 5K miles and it has a new like Ford battery for example. It does have new like rotors and pads but it was done by a private one man shop and they used the best quality from Auto Zone because the shop owner worked there once and still go parts wholesale. Looking down the oil fill hole the aluminum metal is bright and shiny with not film build up at all. The timing chain is the same way with not brown varnish look. I am going to keep using the same Ford oil for sure.
In 2008 Ford messed with the Volvo S80 chassis suspension some and redid the nose on them and later swelled the rear ends. I had a 1966 Comet, the 2000 TC and now this Ford. I am in love with my 500 in less than two weeks. I see some with over 200K miles on them so I am hoping this one will go for another 5-10 years.
Tomorrow with temps to be 61F I am going to pull off the transmission cooler exit hose and pump the fluid to a 5 gallon bucket until it runs red. I have 12 quarts of the Mobil 3309 ATF that Ford (actually Aisin Warner) requires. I will set four aside to top off with so that will let me refill the transmission twice pushing out about 3 gallons when it only holds two gallons so it should be quite red. Next week I will get a Ford oil change (actually cheaper than the Quik Lube place I have used for 20 years) and we should be ready to head to St Paul MN next Saturday morning.
What color is your 500? I think all 500's have the same 3.0L V6. Some were all wheel drive with the Constant Variable Transmission. Long term most prefer our 6 speed transmission from what I can read.