The phrase "significant facelift" means making major changes or improvements to something, usually to improve its appearance or performance. Full definition
Critical Facts: Significant facelift for 2011New front fascia, grille and headlightsNew rear bumper, taillights and diffuserInterior mostly unchangedGasoline or diesel powerplantsStandard 4MATIC all - wheel driveStandard 6 - passenger seatingOptional 7 - passenger accommodationsGreen Facts: Diesel - powered R350 BlueTEC 4MATIC with 400 lb. - ft. (jdpower.com)
In addition to minor updates made over the years, the ES300 received significant facelifts in 1996 and 2001. (automotive.com)
The most significant facelift takes place at the front fascia, with new headlamps, enlarged front air intakes, a slightly tweaked spindle grille, and a subtle reshape for the hood. (automobilemag.com)