Length of first gen CX-9?

2007 Mazda CX-9 Touring
According to the mazda website the stated lenght of the cx-9 is supposed to be 199.8 inches. When I measured the length of the 9 it measures 195 inches and that includes the bumper bar I installed on the rear bumper. Is it common for vehicle manufacturers to exaggerate the lenght of a vehicle?