In many ways, 2017 was a year of uncertainty in Japan, thanks to two portly men with funny hair and bad suits: Donald Trump and Kim Jong Un.

"If ... we sell a car into Japan and they do things to us that make it impossible to sell cars in Japan ... we have to all talk about that. It's not fair."

The new U.S. president dominated the news in Japan over the past year, as he did pretty much everywhere else. Indeed, 2017 in Japan began with President Trump, quoted above, complaining about perceived unfair Japanese trade practices.