Two SUVs with more similarities, such as the body structure, market segment, fuel economy, and maximum occupancy, than differences, like the starting price, ground shadow size, horsepower, and height. First of all, the 2015 Infiniti QX50 is priced $25,600 lower compared to the base MSRP of the 2016 BMW X6. Also, the 2016 X6 pulls more horsepower than the 2015 QX50. And finally, the X6 body is significantly larger than the QX50, and in addition to that, it's also slightly taller. Among similarities are the body structure, market segment, fuel economy, and maximum occupancy.