Trunk comparison: Opel Grandland vs Tesla Model 3

Key Differences

Several clear advantages stand out in the comparison: the Tesla Model 3 offers a longer cargo area — +7.1 in (11%) with the seats folded down and also +7.1 in (20%) when the front row is upright.

In contrast, the Opel Grandland has clear advantages in loading geometry: the height of the trunk opening is +11.4 in (56%) larger on the Grandland, the depth of the trunk (loading edge to trunk floor) is +2 in (45%) greater, and the loading edge is +4.3 in (16%) higher above the road.

The width differences (narrowest point +2.4 in / opening width +3.1 in in favor of the Grandland) are less than 10% and thus less significant.

Impact on Usability

For long items — such as skis, long furniture parts, or surfboards — the Model 3 is more practical: the longer cargo area with both folded and upright seats allows storing longer loads without or with less seat folding. This makes the Model 3 more flexible in everyday use for longer cargo.

The Grandland is better suited for tall or bulky luggage: the significantly larger trunk opening and greater depth create more vertical and usable space for tall boxes, bulky suitcases, or items that need to fit through the opening. The larger opening dimension also makes it easier to load wide/bulky parts.

The higher loading edge of the Grandland (+4.3 in) has two effects: it often provides greater underride protection and can help realize lower trunk floors, but it makes lifting heavy items in less comfortable compared to the lower Model 3. Those who regularly lift heavy loads (groceries, heavy suitcases) will perceive this as a disadvantage.

The slightly greater width of the Grandland is of minor practical importance but only slightly changes the fit of very wide items.

Conclusion

Decision aid: if you frequently transport long items and prefer a low loading edge, the Tesla Model 3 is more advantageous. If you more often have tall or bulky cargo and need a larger opening depth, the Opel Grandland is more practical — but note the higher loading edge when loading heavy items.