So I'm not from a state, but here's the three levels of police in my city -
Ottawa Carleton Police - White Crown Vics/ Blue stripes
Ontario Provincial Police - Marked cruisers are usually Impalas, white with blue & yellow, unmarked cars are usually Impalas in any colur available. They're also trying different cars to blend in with traffic in bad areas.
Royal Canadian Mounted Police - Once again, white with multicoloured stripe. Typically they have Impalas and crown Vics but I once saw a Volvo S70 T5, pretty badass pursuit car, and they also have a Toyota Prius, not much of a threat for pursuit or anything else for that matter.