The police car used by the village bobby is a pre-2002 Nissan Micra, the registration plates fitted are more than ten years younger.
The London scenes use some stock footage, any shots relevant to the story are obviously shot in Dublin - the window view from "Scotland Yard" has the Liffey as background, with both the National Conference Centre and the Samuel Beckett Bridge being very noticeable. Apart from the fact that New Scotland Yard is nowhere near a river ...