Is Back to the Future Part II still a sci-fi movie or is it a piece of historical fiction? We certainly don't have a lot of the technologies it promised us – most namely flying cars. Many of us grew up hoping we'd be living in a world that looked like The Jetsons by now (that show was set in the year 2062, so there's still time).

But, strangely, a future of flavored coffee options, streaming TV, electronic cigarettes, and K-pop music hasn't satisfied our longing for personalized flying vehicles. And what better place to vent our collective frustrations than social media?

The hashtag #InsteadofFlyingCarsWeHave exploded on Twitter this week as people took to social media to bemoan all of the things we have instead of flying cars.

Click through the slideshow to see some of our favorite tweets.

What would you gladly trade for a flying car?

Chris Wiltz is a Senior Editor at  Design News covering emerging technologies including AI, VR/AR, blockchain, and robotics