Last week at the New York International Auto Show, our editors saw a lineup of the hottest vehicles on the market today, but there was one hidden element of the automotive extravaganza that we needed to look a little closer to find: key fobs. The form factors range from the functional and connected, like the Prius Prime’s sleek key fob, to keys that function as devices on their own, like BMW’s 7 Series key, which has a touchscreen and displays information such as driving range and the car’s location. That wasn’t the most extravagantly engineered fob on display, though…We count down the top five in this new video.