This is my new favorite police vehicle by far. The interior has so much detail, and the animations are amazing. At first I couldn't get the windows to work, and I believe it is because there is an error in the vehicles.meta file included- the lines you need to change are:
<animConvRoofName>roof</animConvRoofName>
<animConvRoofWindowsAffected>
<Item>VEH_EXT_WINDOW_LF</Item>
<Item>VEH_EXT_WINDOW_RF</Item>
</animConvRoofWindowsAffected>
I copied and pasted these lines from tornado2 over to sheriff, and the windows work perfectly now.