The 2018 Mercedes-Benz Metris is available as a 3-door, 2-seat cargo van. Starting at $29,950, the 2018 Mercedes-Benz Metris Cargo 126 WB is powered by a 2.0L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 24-mpg on the highway. The top of the line 2018Mercedes-BenzMetrisWorker Passenger , priced at $ 29,995 , is powered by a 2.0L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 23-mpg on the highway.