As above, there really wasn't a lot of differences between the various commando models. Look for the giveaway break in the rear hump to see if it is a 2-up or not, and the rear exhaust mount frames with a passenger footpeg mount. Riders peg position were all the same, h/bars, controls/cables, chrome/painted/carbon parts, polished/black alloy casings, gold/black/polished/upside down forks, wire/carbon wheels, long/short silencers are the most noticeable differences between the models, and some of the 'limited editions', but then again most of these differences were also factory 'options' so pretty much every bike made was a limited edition in some form. The changes that were probably more important were to the ecu and engine components/sensors but the factory didn't reveal a lot when/how/why they made these changes except perhaps to label newer bikes as 'Mk2', but even then there appear to have been differences between one Mk2 and another.