Maybe you should go pick the Inland Valley sand out of the crack of your ass so you won’t be so cranky.
GM has put a test fleet of cars in Arizona.
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At the end of 160,000 miles, hybrids are tested for fuel efficiency and remaining battery pack capacity. This would be roughly equivalent to a normal driver driving 16,000 miles a year for 10 years. Again, though, the test vehicles are put through extremes. The end-of-life battery tests were performed on the first-generation 2002 Toyota Prius, 2001 Honda Insight and 2003 Civic Hybrid, not current models. Two examples of each model were tested: The Insight hybrids drove away with 85% battery life, the Civics had 68% life and the Prius models had 39%. For the complete evaluation, go here. So it seems those worries about having to replace a hybrid's expensive battery before the 10-year mark have been somewhat alleviated.