Two SUVs with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, and maximum occupancy. First of all, there is an $18,035 difference in the base MSRP. The 2016 BMW X6 has a higher starting price than the 2015 Acura MDX. Also, the 2016 X6 has a more powerful engine than the 2015 MDX, and it gets 2.7 fewer miles on a gallon of fuel. And finally, there is a difference in the number of passengers; the MDX seats two more the X6. Among similarities are the body structure, market segment, and height.