My understanding is this , though I could be wrong.
The early cars had rock hard seats and a hood with side flaps. The power socket was a cigarette lighter.
MY 22 cars have more padded seats , a hood that doesn't need side flaps to be water proof . USB power sockets . But most important the suspension geometry was upgraded as was the build quality.
MY23 cars have the airbags, redesigned dash & display with a glovebox & riflebolt door handles. The brake supplier was changed & the autobox was standard & th manual optional. Nitron suspension was introduced late in the model run I think.
MY24 came with the redsigned lights, new wing mirrors. The radiator supplier was changed.
MMC have price lists by year on their website so you can see when things became standard from optional.
My view is buy MY22 or after. Unless of course you find a well sorted early car with decent seats.
