In 2026, reaching 100,000 miles is no longer the "death sentence" for a vehicle that it once was, provided the car has been well-maintained. Modern engineering and synthetic oils have significantly extended the lifespan of engines and transmissions, with many brands like Toyota, Honda, and Subaru easily reaching 200,000 miles. When buying a car at this milestone, the service history is more important than the odometer; you should look for evidence of major "100k services" which often include timing belt replacements, water pump changes, and spark plug swaps. While you will likely face more frequent repairs on "wear-and-tear" items like suspension bushings and alternators, the massive savings on the initial purchase price and the lower insurance premiums often make a high-mileage car a high-value financial decision.