Two SUVs with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, and ground shadow size. First of all, there is a notable difference in the starting price of the 2016 Acura RDX, which is $10,480 less than the base MSRP of the 2015 Infiniti QX70. Also, the 2015 QX70 has a more powerful engine and gets 4 mpg less than the 2016 RDX. And finally, the body structure of RDX is slightly smaller than that of the QX70. Among similarities are the body structure, market segment, height, and maximum occupancy.