Rick Bowmer/AP Photo
Car search engine iSeeCars.com analyzed millions of car listings to determine the best used models for the money. It found the 10-year-old models with the longest potential lifespans and the lowest upfront cost. The 20 models below are ranked by their price per 1,000 miles of remaining lifespan. 20. Toyota SiennaToyota
Average price: $16,289Potential lifespan: 239,607...