There is a saying in BMW, "Act like a start-up, deliver like a grown up." While BMW has been around since 1916 it's digital presence and the mobile app (BMW Connected) was fairly new. The start-up group building the mobile app experience is based in Chicago and I was hired at BMW as a UI/UX designer. The majority of my work focused on iOS though I also helped with android and thought through the holistic user experience from the car head unit, to watch, to Alexa. Plus there are different subbrands, MINI and Rolls Royce, which had it's own different app (but same codebase), different styleguide, and that was also taken into account when designing.