Welcome to the PAC-Car II website!


Guinness World Record

PAC-Car II holds the current World Record in fuel efficiency!

Watt d'Or

The PAC-Car II Team won "The Watt d'Or 2007" Award for energy efficient mobility, by the Swiss Federal Office of Energy >>!

Energy Globe Award

PAC-Car II won the Energy Globe Award 2005, catergory "youth" >>!

PAC-Car II - The Book

The book about PAC-Car II is available now >>

Shape of PAC-Car II

The shape of PAC-Car II is now available as CAD Data >>

Would you like to learn more about modeling and optimization of advanced vehicle propulsion systems? Click here!



PAC-Car II is equipped with 3 wheels; the single rear wheel is powered and steered, and the front wheels have a camber angle of -8°.

This solution allows the reduction of the frontal surface area because the room needed to steer the wheels is not needed. Some experiments on a test bench have shown that this camber angle does not provide too much rolling resistance.


From then, 5 iterations, combining CFD and windtunnel tests have been performed to reach a Cd close to 0.09. The shape of PAC-Car II is optimized for air flow of up to 15° from the longitudinal axis.




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© 2015 ETH Zurich | Imprint | Disclaimer | 11 January 2006