Integrated Body-Frame (IBF) Construction: The Discovery 3 pioneered Land Rover's unique Integrated Body-Frame (IBF) architecture, which combined the strength and rigidity of a body-on-frame chassis with the refinement and crash safety of a monocoque body, offering the best of both worlds for on-road comfort and off-road ruggedness.By Vauxford - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=70077178