Land Rover's Integrated Body Frame (IBF) construction, which combined a monocoque body with a ladder-frame chassis, underpinned the LR3. This design balanced on-road comfort and off-road durability.

While the Range Rover Sport shares many styling attributes with the Range Rover, the vehicle's structure is adapted from the LR3 chassis. Compared to the Land Rover flagship, the 2006 Range Rover ...