text: 2021 Buick 4 SUV pack shot. Left to right includes: 2021 Encore Preferred (1SB) shown in Ebony Twilight Metallic with RRU wheels. 2021 Encore GX Essence (1SL) shown in White Frost Tricoat with RQJ wheels. 2021 Envision Avenir (1SU) shown in Satin Steel Metallic with RTJ wheels.. 2021 Enclave Avenir (1SP) shown in Rich Garnet Metallic with SME wheels. City background