Trunk comparison: Ford Focus Wagon vs VW Caddy Wagon

Key Differences
The Ford Focus Wagon offers a significantly larger cargo area with the seats folded down: it is 26.8 in (+59%) longer than the Volkswagen Caddy Wagon.
Conversely, the trunk opening of the VW Caddy Wagon is 16.9 in (+61%) higher than that of the Focus. Additionally, the loading edge of the Ford Focus Wagon is 2.4 in (+11%) higher above the ground than that of the Caddy.
Impact on Usability
The greater loading length of the Focus with folded seats makes it better suited for very long, flat items (e.g., slats, long furniture parts, skis) — here the Focus clearly wins.
The significantly higher trunk opening of the Caddy, on the other hand, allows for easy loading of tall or bulky items; bulky boxes or cartons fit through the opening more quickly.
Because the loading edge on the Caddy is lower, heavy loads can be lifted in more easily or loaded with a hand truck; with the Focus, the higher loading edge requires more lifting effort.
Other Differences (Less Relevant)
The depth of the trunk (loading edge to trunk floor) is the same, as is the narrowest width of the trunk.
With the first row of seats upright, the VW Caddy Wagon has only a slight advantage of 1.2 in (+3%) in loading length, and the width of the trunk opening is only 2 in (+5%) larger on the Caddy — both small differences without major practical impact.
Conclusion
For long, flat loads, the Ford Focus Wagon is the better choice. For tall, bulky, or frequent handling of heavy loads, the VW Caddy Wagon is more practical due to the higher opening and lower loading edge.