The 2026 Mercedes-Benz Sprinter High Roof is the only van we've ever tried on the 20-degree ramp that makes up our Ramp Travel Index (RTI) test.Our RTI test measures a vehicle's suspension articulation, and the Sprinter managed to outperform off-road-oriented versions of the Ford Maverick and Subaru Crosstrek.While the towering cargo van's RTI result ranks among the lowest scores, its 29.1-inch trip up the ramp beat almost every Honda TrailSport model we've tested.