Two SUVs with some similarities, but otherwise different in most aspects such as the fuel economy, maximum occupancy, market segment, starting price, horsepower, ground shadow size, and height. First of all, there is a $5,935 difference in the base MSRP. The 2016 Lexus RX 450h has a higher starting price than the 2015 Chevrolet Tahoe. Also, the 2015 Tahoe has a more powerful engine than the 2016 RX 450h, and it gets 12 fewer miles on a gallon of fuel. In addition, the Tahoe is both slightly larger and taller than the RX 450h. And then, there is a difference in the number of passengers; the Chevrolet Tahoe seats three more the Lexus RX 450h. Among similarities is the body structure.