Lexus has made some slight alterations to its flagship luxury sedan for 2021 alterations to its flagship luxury sedan for 2021. The LS receives new headlamps and trim surrounds on the exterior, and Lexus says it's quieter inside thanks to a tweaked active-noise-cancellation system. The biggest improvement, however, comes in the form of a 12.3-inch infotainment touchscreen, which replaces the fussy no-touch display that irked us for so many years.