Looking at the 2026 Buick Encore GX, you get two solid engine options in this compact SUV. The 1.3-liter turbocharged engine puts out 155 horsepower along with 174 pound-feet of torque. There is also a 1.2-liter flex-fuel turbocharged engine that runs on regular gas or E85, producing 137 horsepower and 162 pound-feet of torque. Lowell drivers can pick between a CVT or a 9-speed automatic transmission based on their driving preferences.