From
Treehugger:
Inspired by the boxfish, DaimlerChrysler's new concept car is a super-aerodynamic (drag coefficient of 0.19, while the Toyota Prius is 0.26 and a model of the boxfish gets the high-score of 0.06) diesel 4-seater that gets 70 mpg (US) while exceeding the most stringent European emission regulations (now imagine a diesel-hybrid version!). The engine is a 2.0 liters 103 kW/140-hp diesel. Even more impressive is how the concept car only used 2.8 liters per 100 kilomters during a test at a constant speed of 90kph (56mph), which translates to 84 mpg (US). More pictures below..."
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