AMP Holding Inc. announced its electric medium-duty step van has completed durability testing at Transportation Research Center (TRC), an independent testing facility in East Liberty, Ohio. AMP said TRC drove the vehicle 4,000 miles from February through part of April.

TRC’s tests included operating the vehicle at curb weight for 2,000 miles and fully loaded for the other 2,000 miles. The company said each durability cycle for the vehicle was less than 10 miles long and included driving over resonance, chatter, and impact bumps, a series of moderate washboards, frame twists, and dips, inverted chuckholes, stopping and starting on a 20% brake slope, “lock-to-lock” figure-8 maneuvers, a short slalom course, and driving on gravel roads, according to AMP.

The company said by testing the vehicle during the winter months on an accelerated schedule, it shows the vehicle’s electric powertrain can operate successfully in extreme weather conditions while maintaining the van’s structural integrity and all-electric powertrain.

AMP said its all-electric powertrain incorporates a dual-motor system that produces 250 kw and can accelerate the vehicle faster than its original factory-installed diesel engine. The system has total energy storage of 100 kWhr that gives the vehicle a range of 100 miles on a single charge.

Earlier this year, AMP acquired the Workhorse brand and its factory facilities from Navistar International Corp. The company said it plans to offer not only the all-electric Workhorse chassis, but also gasoline-powered and alternative-fuel-powered models as well. The company said the existing network of 440 Workhorse dealers will support the company’s sales efforts.