Two SUVs with some similarities, but otherwise different in most aspects such as the powertrain, starting price, ground shadow size, horsepower, fuel economy, height, and maximum occupancy. First of all, the 2015 Lexus RX 350 has a more powerful engine and gets 1.5 mpg less than the 2016 Mercedes-Benz GL-Class Diesel. Also, the 2015 RX 350 is priced $22,630 lower compared to the base MSRP of the 2016 GL-Class Diesel. In addition, the RX 350 body is significantly smaller than the GL-Class Diesel, and in addition to that, it's also slightly shorter. And then, you'll seat two more passengers in the Mercedes-Benz GL-Class Diesel than in the Lexus RX 350. Among similarities are the body structure and market segment.