Buying a vehicle is one of the biggest purchases many people make. Most buyers focus on price, performance, fuel economy, or technology. But many overlook one important factor that can save thousands of dollars over time: the warranty.

Auto manufacturer stocks can look attractive during strong economic periods. Car sales rise, factories stay busy, and profits often grow quickly. But the auto industry is also one of the most unpredictable sectors in the market.

Auto manufacturing depends on a tightly connected global supply chain. Every vehicle is built from thousands of parts that come from different countries, factories, and suppliers. When even one part of this system fails, the entire production process can slow down or stop.