Its dimensions, due to kei car size restrictions, are nearly identical to the 1990s Beat.

It is sold with either a 6-speed manual transmission or a 7-speed CVT with sports paddle shifters, both options being offered on the two trims available (Alpha and Beta).

[3] The development team of the S660 was led by Ryo Mukumoto, who beat out 400 other participants in Honda's in-house competition at the age of 22.

[5] The prototype and proposed production announcement were widely covered in auto enthusiast news sites and blogs.

After the S660 entered the market, its first driving review was in June 2015 of a Japanese-market prototype driven by Top Gear in Tokyo.