Just a decade ago, diesel cars outsold gas cars in Europe. Super-efficient and great for long-distance cruising, diesel cars seemed headed toward a very bright future. Heck, there is still no vehicle ...
A top car expert has revealed Volkswagen once built the “world’s most fuel-efficient car” with the little-known model capable of up to 300 miles per gallon. The Volkswagen XL1’s carbon-fibre bodywork ...