Two SUVs with more similarities, such as the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy, than differences, like the horsepower, model year, and fuel economy. First of all, there is a difference in model years. The is 2 years newer. And finally, the 2014 X1 has a more powerful engine than the 2016 Q3, but it gets 2 more miles on a gallon of fuel. Among similarities are the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy.