Two SUVs with more similarities, such as the body structure, market segment, ground shadow size, height, and maximum occupancy, than differences, like the starting price, horsepower, and fuel economy. First of all, there is a notable difference in the starting price of the 2015 Lexus RX 350, which is $4,880 less than the base MSRP of the 2016 Infiniti QX70. And finally, the 2016 QX70 has bigger and thirstier engine; the 2015 RX 350 gets 2 more mpg. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.