Two SUVs with some similarities, but otherwise different in most aspects such as the model year, horsepower, fuel economy, ground shadow size, and height. First of all, the 2014 QX50 has a more powerful engine than the 2016 SRX, but it gets 1.5 more miles on a gallon of fuel. Also, the SRX body is slightly larger than the QX50, and in addition to that, it's also taller. Among similarities are the body structure, market segment, starting price, and maximum occupancy.