The document summarizes the introduction and re-launch of the Toyota Prius hybrid car in the US market. It provides sales figures and discusses factors that affected its initial failure and later success. The first Prius, introduced in 2001, was small and underpowered but efficient. It failed to appeal to American consumers. The 2004 re-launch made the Prius bigger with more power and luxury features, improved fuel efficiency, and aggressive marketing. Prius sales increased from 15,000 in 2004 to over 500,000 in 2006 due to these changes and factors like high gas prices, government incentives, and growing environmental awareness.