Complex sentence: When compared to the DB5, it is not "short" but rather the same size, however these cars differ to the DB5 convertible models as they feature DB6 split front and rear bumpers and rear TR4 lights, as also used on the DB6.
Split into simpler sentences: When compared to the DB5, it is not "short" but rather the same size. These cars differ to the DB5 convertible models as they feature DB6 split front and rear bumpers and rear TR4 lights, as also used on the DB6.