2013 was a busy year for Mercedes-Benz. The carmaker introduced a completely redesigned SL Class at the start of the year, they rolled out the sleek-looking rear-wheel-drive ML350 with an all-new mbrace2 telematics system and collision mitigation system, and they redesigned the Mercedes-Benz GL-Class from top to bottom. A year for changes, the GLK-Class got a more powerful V6 engine, with an added four-cylinder turbodiesel engine for the GLK250 that is more fuel efficient than any other luxury crossover SUV. The G-Class fleet saw the addition of the long awaited G63 AMG, with updated electronics and tech features and a long list of new safety features. The C-Class saw fleet-wide changes with a new 3.5-liter V6 being added for the C300 4Matic, new stop-start technology to preserve fuel, and the mbrace2 smartphone-integrated telematics being offered as a standard feature. Lastly, the E-Class got to new models: the E350 Coupe 4Matic and the E400 Hybrid.