The lights are probably broken.

His letter from Sky confirming his installation date.

and even more about the opposing societies

Sas officer

No worries glad you enjoyed 😃

Thanks Maddox! 😃

From what i remember this siren model came with hi-lo but I guess this one could be the 2-mode version with only wail and yelp

Driver training.

There's 3 different groups that use unmarked vehicles. You have the unmarked police cars, of course. These come in varying varieties, the traffic cops going undercover to catch people in the act, detectives vehicles etc etc. Armed Police also have access to unmarked, as well as marked, for when they need to sneak up on some gun-wielding maniac without putting people at increased risk from the suspect spotting them coming. You have ambulance officers. Some ambulance services, including the London Ambulance Service (I think) here allow commanders of senior and more junior levels to use personal vehicles, that way they can respond any time any day. Additionally, some specialists may also use personal owned vehicles for the same reason. Also saves on cost. Some Fire Brigades also allow Station Commanders and various senior commanders to use personal owned vehicles, as it's cheaper than having a designated vehicle, e.g like the "Battalion Chief" vehicles over there in NA. There's also rarities, such as 7:19. In this case, it's a "DIM" van, or 'Detection, Identification, and Monitoring' to deal with Chemical, Biological, Radioactive, Nuclear and Explosive situations, where they use an unmarked van so as to not worry members of the public who spot the van responding somewhere - which of course gets defeated when you know what they are but hey ho. More "luxury cars" like the BMW/Volvo etc are used because they're reliable (or, supposed to be anyway - looking at you BMW Police Car Fires scandal) - and they're fast, and spacious. Basically, they're perfect emergency service vehicles.