Differences are basically cosmetic. Different front spoiler, extended side sills and different rear bumper configuration. M Sport brake calipers, M Sport badge. Fully digital dash and 10″ Infotainment display as oppose to 8″ in the Sport.
I’d have loved the M Sport, but the I’ve specced 19″ bi colour alloys and phytonic blue (which isnt available in M Sport) so it’ll stand out in the crowd. I’ve also gone for the Tourer, which are quite rare in the UK.