When it comes to transportation tech, tomorrow’s hope sometimes ends up as yesterday’s hype. In 2001, Segway inventor Dean Kamen told Time magazine that his two-wheeled scooter, “would be to the car what the car was to the horse and buggy.”

That hasn’t happened, and since then, there have been plenty of predicted game-changers. More recently, tech companies have promised transportation revolutions that could ease congestion, save lives and help curb greenhouse-gas emissions.

So how has mobility tech fared over the last year? Let’s look at a few notable examples.
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