The Zenz is penned by Ralf Zenz, a German car designer who's all about marrying high-performance and efficiency in one fun package. The display that will be on in Geneva will only be a model, but a fuel efficient diesel engine which could deliver 100KM per 3 liters!

  There are no plans to sell the Zenz, but it, like every concept in Geneva, will vie for the attention of automakers and well-funded venture capitalists who could put it on the path to production.