The E-Class is the midsize luxury vehicle from Mercedes-Benz and is available as a sedan or station wagon. The E-Class has been around since 1984, and it offers a slightly larger cabin than the C-Class without being too big or ostentatious like the S-Class. The E63 AMG ups the ante with sport-tuned suspension and brakes, unique aerodynamic exterior modifications and 507 horsepower under the hood. The E-Class comes with a four-year/50,000-mile warranty and gets an estimated 19-24 mpg on the highway; the E320 BlueTEC sedan gets an estimated 32 mpg on the highway.