At about £106bn for 531km, that's £200m a km. If the line were built out of a stack of twenty pound notes, it would come to about £100bn. So HS2 costs about the

At about £106bn for 531km, that's £200m a km. If the line were built out of a stack of twenty pound notes, it would come to about £100bn. So HS2 costs about the same as a 500km stack of twenties. Only a million people live in Birmingham. That's £100k each.