Two Coupes with more similarities, such as the body structure, market segment, ground shadow size, height, and maximum occupancy, than differences, like the modifications, fuel economy, market segment, starting price, and horsepower. First of all, there is a $24,927 difference in the base MSRP. The 2016 Maserati GranTurismo MC Centennial has a higher starting price than the 2016 BMW i8. Also, the 2016 GranTurismo MC Centennial has a more powerful engine than the 2016 i8, and it gets 12 fewer miles on a gallon of fuel. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.