Recent Arrival! Quicksilver Metallic 2019 Buick Encore Preferred FWD 6-Speed Automatic ECOTEC 1.4L Turbocharged. 25/30 City/Highway MPG. Gjovik Chevrolet Buick GMC, serving the area for over 50 years! 'Drive a little, Save a lot!' Proudly serving the towns of Sandwich, Plano, Oswego, Bristol, Montgomery, Sugar Grove, Aurora, Naperville, Orland Park, and the surrounding Chicagoland and Midwest area.