On June 7 and 8, the streamlined, three-wheel car built by the UMass Amherst Supermileage Vehicle (SMV) Team, which calls itself Zoom Mass, rolled smoothly through the Society of Automotive Engineers (SAE) Supermileage® competition in Marshall, Michigan with a car shell made of shrink wrap and an emergency engine getting a tightfisted 843 mpg and running mainly on true grit, improvisation, and elbow grease. “As usual, we ran into a number of technical difficulties, which included killing an engine, two batteries, and a starter motor,” says SMV faculty advisor Jonathan Rothstein of the Mechanical and Industrial Engineering Department, “but we persevered!”