Very poor reliability. I am not going to say much other than if you buy one you were warned. Maybe because they are build in the states and not Munich. Maybe because they have so much electronics that no one knows how to fix when it breaks but mine has been nothing but problems. Climate control issue, leaking of fluids and high battery discharge than can leave you stranded and has twice. The sedans seem fine and I should know as I drive loaners of 1, 3 and 5 series more than my SUV. Do yourself a favor and look elsewhere.
I like the power, cornering and transmission knob.
Make it more more often then not, the run flat tires I do not like. No jack comes with the car as there is no spare. Will not matter as it will not work long enough to be an issue.