The 2022 Mercedes-Benz GLB 250 is available as a 4-door, 5-seat sport utility. Starting at $38,600, the 2022 Mercedes-Benz GLB 250 GLB 250 FWD is powered by a 2.0LL , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 32-mpg on the highway. The top of the line 2022Mercedes-BenzGLB 250GLB 250 AWD , priced at $ 40,600 , is powered by a 2.0LL , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway.