Volume leaders in December included the GLC, GLE and C-Class model lines.

Slideshow: The new E-Class Cabrio is Mercedes engineering at its best!

New AMG GT models include a new dynamic side skirt, new diffuser insert in the rear bumper, and a revised tailpipe design.

Slideshow: The 2020 GLE SUV is new, improved, and pricey!

M-B's all-new SUV is a full five inches longer than the GLC, has a third row and is off-road ready.

M-B's pilot program is proving to be a huge success with a purported 82-percent of all subscribers being newcomers to the brand. More cities to come.

New V8-powered GLE 580 4MATIC joins the 350, 350 4MATIC and 450 4MATIC models, and will go on sale in the U.S. in late 2019.