The Escape has been having expensive engine issues shortly after the warranty runs out.

The Mach-E had its performance cut down via a software update because the power it was putting out at launch was destroying drive units.

Every ambulance is an F-550 because there is no competition.

Explorers are the most common because they're the cheapest and because Ford is the only company making police specific trim levels. Chrysler and Dodge only recently started trying to make police trim levels with cars in their line ups so it makes sense Ford is still the most common.

The Broncos have had several engines blow up and I believe all of them are under a recall for the issue causing the engines to blow up.

Ford may be the most reliable out of the main 3 American car makers but they still sell junk that barely last for the warranty period before it starts having issues. For example, the automatic trans in the Focus.