The Honda S660 is a compact, kei-class sports car first introduced in 2015, designed primarily for the Japanese domestic market. Known for its lightweight and nimble handling, the S660 features a mid-engine, rear-wheel-drive layout with a turbocharged 660cc three-cylinder engine. Its dimensions comply with Japan's kei car regulations, making it an agile city-friendly sports car with a unique blend of performance and efficiency. Throughout its production, the S660 has garnered praise for its fun driving dynamics and distinctive design, appealing to enthusiasts of small sporty vehicles.