The promise of the smart wheelchair—a powered mobility device capable of navigating spaces on its own—has never been realized for most of the people who might benefit from it most. This year, researchers and companies say they’re starting to […]

A semitrailer that helps propel itself entered commercial road testing in late May, when a power-train kit developed by Nivalis Energy Europe, headquartered in Luxembourg with engineering operations in Germany, was fitted to a trailer supplied by […]

For decades, automakers enjoyed a luxury that had nothing to do with the softest leather or the smoothest engines. Their luxury was time, with some popular cars and trucks enduring for a decade or longer before they received a full redesign. The […]