i love the xf. not just because i own 1 but they look good bns. i have also found they are longer than a au not by much. u can also move the back wall of the cab back and have extra room like in the au's. the parts are cheap and if u have a carby model u can work on it ur self.
i prefer older cars as i have been brought up with older cars and later on, they could be worth some money.