The Mercedes-Benz E-Class, in many ways, helps shape the large luxury segment, and the 2012 E-Class is one of our favorite used cars for less than $30,000. It’s got good safety and reliability scores, and offers excellent comfort, style, and power. In 2012, the E-Class was offered as a 5-passenger sedan or station wagon, or a 4-passenger coupe or convertible. Rear-wheel and all-wheel drive were both available, along with a range of engines that includes an efficient BlueTEC turbodiesel and a peppy 402-horsepower V8. You probably can’t go wrong with a late-model used Mercedes E-Class