Getting behind the wheel of the right used car is more challenging than buying a new car. When you buy new, you just have to find a vehicle that fits your needs and budget. Buying used adds additional steps to the mix, such as finding a car with low mileage, lack of significant crash damage, and a history of regular services. You need to learn much more about a three-year-old, 36,000-mile used car than you do about a brand-new car with 10 miles on the odometer.