Time flies, and technology flies even faster. In the ten years since the BMW i8 has come and gone from the autoverse, so much has changed that it’s hard to remember where we were just ten years ago.

BMW M may have opted for the bulky and controversial XM SUV as its ultimate flagship, but a few years back, there was a sleek, low-slung sports car in the works. The BMW I16 was unveiled on social ...