The 2021 Mercedes-Benz Metris is available as a 3-door, 2-seat cargo van. Starting at $32,630, the 2021 Mercedes-Benz Metris Cargo 126 WB is powered by a 2.0LL , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 23-mpg on the highway. The top of the line 2021Mercedes-BenzMetrisPassenger , priced at $ 36,840 , is powered by a 2.0LL , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 22-mpg on the highway.