Two SUVs with some similarities, but otherwise different in most aspects such as the model year, powertrain, modifications, horsepower, fuel economy, and market segment. First of all, there is a difference in model years. The is 3 years newer. Also, the 2013 Grand Cherokee SRT8 has a more powerful engine and gets 9 mpg less than the 2016 Cayenne Diesel. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.