Cheat: Tank!

The Getaway was one of Brendan McNamara's earlier titles before making a bigger name for himself with L.A.Noire. This London crime drama is also one of the more constrained open world games, designed so that the player would focus on the story. That said, there is an opportunity for some extra-curricular mayhem. To drive a tank through London, go to St. James' Park. There you'll find the Army barracks, and in there, a tank.