Three others - Robert Greenhill, 62, of Dartford, Kent, Joseph McCorry, 52, of Welling, Kent, and Daniel Cheevers, 47, of Wellingborough, Northamptonshire, were jailed last month.
Just ask Chicagoans Liz McCorry and Phil Koesterer, who found themselves perplexed at the prospect of replacing their Volkswagen New Beetle for a more accommodating ride with a child on the way.