Hmm... I have a plus 4 sport with the internal boot. Although shallow it is useful. However I think you need to look at the measurements at the top where it meets the parcel shelf. The sport has a fixed shelf and no tool tray. I tried to fit a second hand tool tray under the fixed shelf, and it was too "long" (Ie front to back) so reverted to fixing it back down and foregoing the tray.
