You might be thinking what is a Kei Car? So let my explain, a Kei Car or Keijidōsha is a Japanese category of mini-sized models that enjoy tax and insurance advantages. It was developed to promote popular motorization in the post-war era in Japan.
The Kei Car has a maximum length of 3,4 meters, maximum width of 1,48 meters, maximum height of 2 meters, 660cc maximum displacement and 63bhp for it's power limit. This little car has two engines available, a 0.6liter naturally aspirated and one turbocharged with front wheel drive and all wheel drive to choose from and one gearbox choice, a continuously variable transmission. Yet the power figures aren't known yet, Honda only revealed that it is "equivalent to a vehicle in the 1.3L class."
Source: Autoblog