[Nezil]

I see a lot of people mentioning the costs here, rather than the pros and cons of the improvements with the newer model years, so I'm going to focus on that.

The best thing (in my opinion) about the 2018 is its improved headlights, not just from the perspective of how they look aesthetically, but how they perform. The Adaptive LEDs are simply incredible, especially if you code in the European variable light distribution.

The 2018 has iDrive 6, which is a little nicer than iDrive 5, and it also has wireless charging if you get the exec package. Both of these are minor, but worth pointing out.

Finally, 2018 gets you the newer interior, which although looks a bit more modern, still isn't particularly nice. The pre-LCI gauges look nicer to some people, but are nearly impossible to read in some conditions. The LCI gauges are back-lit rather than front-lit, and are therefore always easy to read, but are illuminated white rather than amber. Oh, and 2018 gets you a real oil temp gauge rather than combined oil and water in pre-LCI.

I think the MY2016 had issues with the ASD that resulted in hissing that isn't present in the newer vehicles, even though that's not an LCI thing.