Trunk comparison: Hyundai IONIQ vs Tesla Model 3

Key Differences (highlighted: >10%)

When it comes to trunk volume, the Tesla Model 3 is ahead: With the seats folded down, the cargo floor of the Model 3 is 9.4 in (15%) longer than that of the Hyundai IONIQ. With the first row of seats upright, the Tesla still holds the advantage: The trunk is 6.3 in (18%) longer.

The trunk opening of the Hyundai IONIQ, on the other hand, offers significantly more height clearance: The opening is 5.5 in (27%) higher than that of the Tesla Model 3.

Impact on Usability

More length in the Tesla Model 3 (in both situations) means practically: longer items can be transported flatter and more easily — e.g., furniture parts, long boxes, skis, or bulky loads when the seats are folded down or in use. Those who frequently transport long items have a clear advantage with the Model 3.

The higher trunk opening of the Hyundai IONIQ makes loading tall or bulky items easier: bulky boxes, tall plants, or suitcases can be placed more easily through the opening without hitting the roof edge. Additionally, the higher opening helps with overseeing and positioning large objects when sliding them in.

Other, smaller differences:

• The width of the trunk opening is about 2.4 in larger on the Tesla — making it easier to maneuver wider items, but below the >10% threshold.
• The narrowest interior width is slightly ahead in the Hyundai (+2 in), and the depth from the loading edge to the trunk floor is about 0.4 in greater in the IONIQ — both small effects for specific packing cases.
• The loading edge of the IONIQ sits about 2.8 in higher above the road than the Tesla — this increases lifting when loading (disadvantageous for heavy loads), but just misses the “important” marked differences.

Conclusion

For transport tasks involving longer items, the Tesla Model 3 is more useful due to the significantly greater loading length.

For transporting tall or bulky single items, the Hyundai IONIQ offers advantages thanks to the higher trunk opening. Which design is more practical depends on the typical cargo: length vs. height.