WASHINGTON — After a near collapse at the height of the Great Recession, the streamlined U.S. auto industry defied the odds and outperformed the greater economy this year with solid sales increases, job growth and product innovations that signal that a full industry recovery no longer is just possible, but probable. Credit better quality and pent-up consumer demand for the industry’s slow, steady improvement. Customers who were unwilling to gamble on automobile purchases during the recession are coming back to showrooms because the average age of vehicles on U.S. roads is more than 10 years — the highest ever.U.S. car buyers also are getting comfortable with making large purchases in the volatile economy, experts say. In this file photograph, Cadillac Escalade SUV’s are inspected at the General Motors Assembly Plant in Arlington, Texas. The U.S. automotive industry has defied the odds and outperformed the greater economy this year. And that’s a big behavioral change from what we saw in ’08 and ’09. That’s good for the industry,” said Jesse Toprak, the chief industry analyst for TrueCar.com, an auto-pricing website.After selling roughly 11.8 million cars and trucks last year, U.S. vehicle sales to businesses and consumers are expected to hit nearly 12.8 million in 2011, Toprak said. That’s up from 10.6 million at the height of the Great Recession in 2009.Through November, new-vehicle sales had logged six straight months of year-over-year gains. That should continue in December, when 1.2 million vehicles are likely to be sold, Toprak said.Those numbers are well off their pre-recession levels, which topped 16 million vehicles a year. But the industry’s plodding recovery over the last two years has helped stabilize the greater U.S. economy. U.S. and foreign automakers are poised to add nearly 167,000 U.S. jobs by the end of 2015, according to the nonprofit Center for Automotive Research in Ann Arbor, Mich. That breaks down to 30,000 hourly and salaried workers at the Big Three U.S. automakers, 17,000 jobs at foreign automakers and about 120,000 auto-supply sector jobs.“The industry has pretty much hired back just about everybody from the automotive side that had been laid off. And now they’re hiring fresh, so they’re actually adding to their rosters. And it’s not just the Detroit automakers. It’s everybody,” said Aaron Bragman, senior analyst at IHS Automotive in Northville, Mich.Most analysts say the industry’s growing stability is sweet vindication for the federal government’s $80 billion bailout, which allowed General Motors and Chrysler to reorganize. The Center for Automotive Research estimates that the bailouts saved more than 1.1 million jobs in 2009 and another 314,000 in 2010, while avoiding personal income losses of more than $96 billion.