In 2013 Nissan made headlines with one of the most unique concept cars in the world, the IDx sports car. With a retro body and compact 1.6-liter engine, the IDx was built to compete against similar mid class sports like the Mazda MX-5. While the IDx still hasn't been built, chief designer Shiro Nakamura told Motoring, "It's a nice car and nice design. I cannot say anything more than that. We are exploring many opportunities and that is one of the opportunities that we are exploring. Unfortunately, I cannot say anything more than that."