The Volkswagen XL1 is a revolutionary ultra-efficient plug-in diesel hybrid car developed by Volkswagen, first introduced in 2013. Known for its exceptional fuel economy and aerodynamic design, the XL1 was produced in limited numbers across a single generation. It features a very compact size with advanced lightweight materials, emphasizing eco-friendly performance while maintaining practical usability. The XL1 remains a benchmark in the evolution of sustainable automotive technology.