2020 Buick Encore Preferred. Summit White 2020 Buick Encore Preferred FWD 6-Speed Automatic Electronic with Overdrive ECOTEC 1.4L I4 SMPI DOHC Turbocharged VVT Encore Preferred, 4D Sport Utility, ECOTEC 1.4L I4 SMPI DOHC Turbocharged VVT, 6-Speed Automatic Electronic with... via AutoRevolution