The Honda S2000 is a roadster manufactured by Japanese automaker Honda between 1999 and 2009. All model years of the Honda S2000 have keyless entry remote fob smart keys that are onboard programmable, which means a person can program the keyless entry remote fob smart key with no special equipment other than the keyless entry remote fob smart key programming instructions. The S2000 is named for its engine displacement of 2 liters, carrying on in the tradition of the S500, S600, and S800 roadsters of the 1960s.