Two Sedans with more similarities, such as the body structure, market segment, starting price, ground shadow size, and maximum occupancy, than differences, like the modifications, horsepower, fuel economy, and height. First of all, the 2015 BMW M6 Gran Coupe has a more powerful engine than the 2016 Jaguar XJ XJR, and it gets 2 fewer miles on a gallon of fuel. Also, the 2015 M6 Gran Coupe has a slightly taller body than the 2016 XJ XJR. Among similarities are the body structure, market segment, starting price, ground shadow size, and maximum occupancy.