FILE: Iran entry in US solar challenge A solar car built by Iranian students has finally arrived in the United States for an international competition after a race against the clock, their spokesman told AFP on Monday. A dozen students from the Qazin Azad Islamic University have taken delivery of the Havin-2 after it cleared US customs to race in the 2,735-kilometre (1,700-mile) American Solar Challenge starting on July 2.IMAGES of the car before its departure from Iran