Haven’t you thought about it when you were stuck in an endless traffic jam: The flying car. That dream is fast becoming a reality. AeroMobil, a Slovakian company, which unveiled a prototype in 2014, while Terrafugia in the U.S. is aiming to complete its TF-X flying vehicle by 2018. Lilium Aviation, a German company, is also hoping to launch a lightweight and compact flying car, complete with an electric engine and a computer assisted piloting system, within the next two years. And a team of young Japanese engineers is developing a flying car, dubbed Skydrive, with the goal of launching it in time for the 2020 Tokyo Olympics.