This follows 2017's upgraded engines.
In the 2017 2 Series, the old badges are out. Meet the new 2017 230i and M240i, in both coupe and convertible flavors.
BMW might not be done tweaking its naming scheme quite yet. Of course, at this point, the jumble of numbers on the back of the Bavarian models has no connection to what's under the hood. So there's not much reason to stop changing the monikers now.