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Top 10 'cash for clunkers' trade-ins

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2 & 8. Ford F150

The F-Series is a series of full-sized Ford pickup trucks that have been sold for more than five decades. The most popular variant of the F-Series is the F-150 — it was the best-selling vehicle in the U.S. for 23 years. The first F-series truck was introduced in 1948, making it no wonder that the F-150 takes both second and eighth place on this list, due to sheer numbers. Interesting factoid: Ford owners have discovered that the cruise-control system in the vehicles can catch fire when the the switch system corrodes over time, overheats and then ignites.