Mercedes-Benz’s big SUV benefits from a redesign for 2020 and is ready to confront rivals with mild hybrid powertrains, including a 362-horsepower V6 and a 483-horsepower V8. Its all-wheel drivetrain not only allows it to survive the winter season, but also to handle itself brilliantly off the beaten path. The GLS also received an extra dose of technology, with two huge digital screens, a modern MBUX infotainment system and a Burmester surround sound system.