2019 Acura MDX A-Spec & 2019 Mercedes-Benz CLS

This week, the Acura MDX A-Spec brings a sporty flair to luxury hauling. Pat Goss has the lowdown on removing rust the right way. Stephanie Hart takes us to the front lines of self-driving cars. Finally, we test the latest generation of the original four-door luxury coupe, the Mercedes-Benz CLS.