Welcome to the forum Simon!
As an ex 2010 4/4 owner who upgraded to a 3.0 Roadster last year, if I was starting again and wanted a 4/4, I'd not buy the latest Sigma engined one but look for the earlier 1800 Zetec cars which as I'm sure Budster will remind me, enjoys a lot better torque characteristics. Or look out for the 75th Anniversary model which has the 2 litre Duratec in the narrow wheeled 4/4 bodyshell. A really nice package.