Two SUVs with some similarities, but otherwise different in most aspects such as the powertrain, starting price, horsepower, fuel economy, model year, market segment, ground shadow size, and height. First of all, there is a $13,055 difference in the base MSRP. The 2016 BMW X3 Diesel, a newer vehicle by two model years, has a higher starting price than the 2014 Jeep Grand Cherokee. Also, the 2014 Grand Cherokee has bigger and thirstier engine; the 2016 X3 Diesel gets 10.5 more mpg. In addition, the X3 Diesel body is slightly smaller than the Grand Cherokee, and in addition to that, it's also shorter. Among similarities are the body structure and maximum occupancy.