When Ulli Sommer, a 41-year-old engineer and avid cyclist, started thinking about ideal car design a few years ago, the first image that came to mind was a nail. "It's the perfect combination of aerodynamics and strength," he says over coffee in the Munich conference room of Ruetz Technologies, his employer and partner in a venture to build the first mass-market
ultralight
car. Sommer's Loremo (pronounced
lo-ray-mo
) and short for Low Resistance Mobile looks
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nginx/1.14.0 (Ubuntu)
nothing like a nail. On the contrary, it looks amphibious; Sommer and his partners first nicknamed it the...