If you're hard-pressed spotting the difference at a glance, you're forgiven. It appears the upgrades are reserved for the interior - unless you're opting for the 'black pack' themed 'Shadow' special editions, which add an array of dark trim highlights.
Headlining the upgrades for the core range include a new, more driver-focused instrument panel, a black panel instrument cluster, contrasting stitching depending on variant, and a sliding cover for the front cup holders.
Various trim and material upgrades help to give the 1 Series a more upmarket feel, including more chrome highlights, a new Cognac colour for the Dakota leather trim of higher variants.
Also updated for 2017 is the iDrive infotainment system, which now features an in-built SIM card and ConnectedDrive services as standard.
Some of these extended net-based features include concierge services, real-time traffic information with hazard preview, and access to the BMW Connected smartphone app - where users can track vehicle information and remotely lock/unlock their vehicle via their mobile device.
Optional features in overseas markets include a WiFi hotspot and Apple CarPlay, along with the larger Navigation Professional system - which also adds a touchscreen for the 8.8-inch display.
The updated range also adds new driver assistance options such as adaptive cruise control with stop/go function, lane departure warning and autonomous emergency braking (AEB) which works at speeds of up to 60km/h (37mph) and can also detect pedestrians and motorcycles.
As before, the 1 Series is offered with a range of three-, four- and six-cylinder turbocharged petrol and diesel engines.
Finally, the updated range also offers several special-edition models; the Edition Sport Line - Edition M Sport Shadow, and M140i Edition Shadow - all bringing an array of dark-themed exterior highlights.
The Shadow models are distinguished by enhancements such as LED headlights with black inserts, darkened LED tail-lights, black chrome trim for the double kidney front grille, tailpipe finishers, along with two new exterior colours; Estoril Blue (pictured) and Sunset Orange. Several dark alloy wheel designs are available depending on model.
The 2 Series range has also been updated. Story to follow.
Australian details are still to be finalised, although BMW's local arm has confirmed it is aiming for a late September launch. We will update this story as more details come to hand.
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