Click on the following link, then search dealer inventory of a big dealer in your neck of the woods. Find a pickup with MSRP of about $50k, then notice the X-Plan price.
Click here.
Here's one my dealer has in stock today:
F-250 Lariat chrome pkg CrewCab shorty 4x4 (manual xfer case) 6.4L automatic and several options:
$50,515 MSRP
$46,167 X-Plan price
$5,000 factory incentives today in this zip code
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$41,167 net cash, plus TT&L.
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Of course you don't really "save" the difference between MSRP and X-Plan price. Any idiot could buy that truck for about $42k with just the tiniest bit of negotiating. And a hard-nosed buyer could probably buy it for $41,500. But you still save a few hundred bucks with the X-Plan PIN.
Also that price assumes no trade-in. If you have a trade-in, you still have to do some negotiating on the price they are going to allow you on your old ride. Ford sets the X-Plan selling price of the new pickup, and they don't allow the dealer to add dealer packs such as docummentation fees, but they don't get involved with trade-ins.