Two SUVs with some similarities, but otherwise different in most aspects such as the modifications, ground shadow size, starting price, horsepower, fuel economy, height, and maximum occupancy. First of all, there is a notable difference in the starting price of the 2016 Acura MDX, which is $6,565 less than the base MSRP of the 2016 Mercedes-Benz GLA-Class AMG GLA 45 4MATIC. Also, although the 2016 GLA-Class AMG GLA 45 4MATIC has a more powerful engine than the 2016 MDX, it gets 3 more mpg. In addition, the MDX body is significantly larger than the GLA-Class AMG GLA 45 4MATIC, and in addition to that, it's also slightly taller. And then, there is a difference in the number of passengers; the Acura MDX seats two more the Mercedes-Benz GLA-Class AMG GLA 45 4MATIC. Among similarities are the body structure and market segment.