In Ireland we only have 3 models and they go by:
Chenile - Base model
Sport - LSD, Grey cockpit trim inside, alloy pedals, 17" Rims
Executive - 1/2 leather, s/r std, 17"Rims
I suppose there is only one way of finding out, borrow an executive for a few minutes and go and test the diff out !
Cheers anyway....