Trunk comparison: Ford S-MAX vs Jeep Compass

Main Differences
The Ford S‑Max offers a significantly longer cargo area: with the seats folded down, the trunk is 13 in (≈20%) longer, and with the first row of seats upright, it is even 11.8 in (≈37%) longer than the Jeep Compass.
The Jeep Compass, on the other hand, has a significantly greater depth between the loading edge and the trunk floor: this is 5.1 in (≈433%) larger.
Additionally, the loading edge of the Compass is 7.9 in (≈35%) higher above the road than that of the S‑Max. All other differences (widths, opening height) are under 10% and therefore less relevant.
Impact on Usability
Due to the longer cargo area of the S‑Max, long or bulky items (e.g., furniture parts, ladders, skis) can be transported more easily and space-efficiently; with the seats folded down, more cargo volume is created lengthwise.
The greater depth of the Compass means that the interior measured from the loading edge to the floor is deeper, which offers more "entry depth," but combined with the 7.9 in higher loading edge is less practical: the loading edge of the Compass is overall about 2.8 in higher above the road (7.9 in higher minus 5.1 in deeper floor level), making lifting heavy items into the trunk more demanding.
In short: the S‑Max is better suited for longer and easier loading transports; the Compass has a deeper loading recess but loses ease of use when loading and unloading due to the higher loading edge.