How do the British police decide on their cars? and sort yourselves out Avon and Somerset Police?

The police decide on certain specifications and submit them for tender to dealers.The City of London police authority are the Common Council and the City has one of the largest incomes in the world so large they give money to the Metropolitan areas so they can afford the best of everything.I am sure that you will find all forces have Range Rovers for specialist tasks.The majority of cars are for general duties not pursuit and the traffic sections have the bigger more powerful cars.Manufacturers do give cars to police forces for essment.The Budgets do vary considerably.