About the 2021 Lexus IS
The 2021 model year of the Lexus IS sits in the a compact executive sedan that was Australia's #82-best-selling new vehicle in 2024. IS is the most-reliable car in this segment by Toyota-data — but the 2GR-FSE 3.5L V6 has documented carbon buildup similar to the Mazda CX-9 issue. Service-history verification matters less than for German competitors but Lexus's 4-year warranty requires Lexus-dealer servicing to remain valid for the full term.