Where can I find them?

Compared to Nissan, Ford, Chevrolet, Hyundai, Kia (at least here in the states)

Mazda is reliable as well, not only Toyota and Honda. And maybe even Subaru, which is very popular in Cambridge.

2018 was the last model year for the Focus. 2019 was the last model year for the Fiesta and Taurus. 2020 was the last model year for the Fusion.

Now, you only have the Mustang.

I have also seen some Ford Expedition being used as police cars in Boston by the way, so it is not only Ford Explorers. But you are correct that most police cars are Ford Explorers.

I have seen several Saab 9-3 around here and there, and several days ago, I have even seen a Saab 9-5 whilst biking around Cambridge.

I am curious how many trucks you see in Cambridge belong to the residents? From what I have seen, nearly all trucks belong to the contractors who work in Cambridge.

Even though Ford does sell a lot of trucks, they do sell passenger cars as well, such as the Ford Fiesta, Ford Focus, Ford Fusion, Ford Taurus, Ford Escape, Ford Edge, Ford Explorer, etc, and virtually all police cars in Cambridge are Ford Explorers.