Two SUVs with some similarities, but otherwise different in most aspects such as the model year, starting price, horsepower, fuel economy, and ground shadow size. First of all, there is a $26,280 difference in the base MSRP. The 2016 BMW X6, a newer vehicle by three model years, has a higher starting price than the 2013 Acura RDX. Also, the 2016 X6 has a more powerful engine and gets 3.2 mpg less than the 2013 RDX. And finally, the RDX has a slightly smaller body than the X6. Among similarities are the body structure, market segment, height, and maximum occupancy.