Some key differences for facelift models - note there are also Business (very basic) and SE and R-Sport versions.
Of the other 3 there are:
Luxury - bonded leather seats with 6 x 6 way electric adjustment, no driver memory function, basic audio system 17" wheels
Premium Luxury - soft grain leather seats with 10 x 6 way electric adjustment with memory, middle audio system, 18" wheels, heated windscreen, folding mirrors, folding rear seats
Portfolio - Soft grain leather with 16 x 12 electric adjustment with memory function, active ventilated front seats - heated and cooled, top of range audio system,19" wheels, folding mirrors, folding rear seats
Obviously, there are optional extras that can be added to all models. Standard colour was white with other colours a paid for option with the exception of some colours being a no cost option with the Portfolio.
The 3.0l is nice and smooth and very pokey in S version.