Volkswagen’s Incredible XL1 Had An Even More Economical Smaller Brother

You know the Volkswagen XL1, the six-figure, gullwinged car with a carbon fiber tub… and 68 horsepower. It was designed as the most fuel-efficient production car built, and it succeeded. A few years before that car came into production in 2013, though, the concept of a compact, lightweight, hyper-focused, efficient car had been teased by VW, and it’s one you probably never even knew existed.