The Lexus IS is a series of entry-level luxury cars sold by Lexus since 1998. The IS was introduced as an entry-level sport model slotted below the ES in the Lexus lineup (and outside of North America, the Lexus GS). The IS was originally sold under the Toyota Altezza nameplate in Japan (the word "altezza" is Italian for "highness") until the introduction of the Lexus brand and the second-generation Lexus IS design in 2006.