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 Cadillac SRX, which is $21,995 less than the base MSRP of the 2015 BMW X6. Also, although the 2015 X6 has a more powerful engine than the 2016 SRX, it gets 1.5 more mpg. And finally, the X6 is slightly larger than the SRX. Among similarities are the body structure, market segment, height, and maximum occupancy.