The Solar Car Challenge was created in 1993.
Aurora Solar Car was created in 1980.
Michael Andretti's Indy Car Challenge was created in 1994-09.
World Solar Challenge is organized once in two years. There was not WSC in 2008, but also was North American Solar Challenge in U.S. and Univ. of Michigan Solarcar Team won the race with Continuum solarcar.
North American Solar Challenge http://americansolarchallenge.org/index.html
A solar engine for a solar car is actually an electric motor. Solar cells on a solar car collect solar energy, which is then sent to a battery or battery pack in the form of DC current. This energy is then used to power the solar car.
http://americansolarchallenge.org/
Karaoke Challenge was created in 1997.
Challenge of the Masters was created in 1976.
Supercar Challenge was created in 2009.
Challenge Stakes was created in 1878.
The Fairchild Challenge was created in 2002.
The Challenge Trophy was created in 1912.