Grand

Grand Coalitions are common in Gisela Stuart's native Germany, which has one now.

Mind you, formal and informal coalitions between Labour and either the Conservative Party or whatever vehicle organises the paleo-Tory vote in a given locality are not uncommon at municipal level.

The late, great Derwentside District Council was run for many, many years by an unofficial but highly effective arrangement between the Labour mainstream, which led that Council throughout its history, and a body of Independents, against the nutters on both (or all) sides. It worked.

There is not going to be a hung Parliament, though.