Trunk comparison: Hyundai IONIQ vs Mazda Mazda CX-5
Main Differences (highlighted: >10%)
The most noticeable disadvantages/advantages concern the shape of the loading opening and the floor depth: The loading opening height of the Mazda CX-5 is 5.1 in (+20%) higher than that of the Hyundai IONIQ.
Additionally, the loading opening width of the CX-5 is 4.7 in (+13%) larger. Conversely, the Hyundai IONIQ has a significantly deeper trunk recess (distance from loading edge → trunk floor): this is 2.8 in (+140%) larger in the IONIQ than in the CX-5.
What are the practical implications?
Larger opening height and width (CX-5): The higher and wider opening makes it easier to load and unload bulky, tall, or wide items (e.g., furniture parts, boxes, strollers, bulky cartons). Loading with wide items or sliding large objects in sideways is also more comfortable in the CX-5 due to the larger passage.
Deeper trunk recess (IONIQ): The IONIQ offers a significantly deeper cargo well below the loading edge. This creates more usable depth and allows luggage to sit lower (better wind protection, lower center of gravity, partially more concealed volume).
At the same time, lifting heavy items in and out can be somewhat less convenient because they must be lifted over the loading edge and then lowered deeper.
Smaller differences (not highlighted): Lengths with folded or upright seats (CX-5 only about ~4–5% longer), the narrowest width (+2 in in the CX-5), and the loading edge height above the road (+0.8 in in the CX-5, ~3%) are rather marginal and have less impact on everyday use.
Conclusion — which model suits whom?
If you frequently transport tall or wide items (regular bulky shopping, furniture, sports equipment), the Mazda CX-5 is the more practical choice due to its significantly larger loading opening height and width.
If, on the other hand, you value a lower-lying storage space with a lower luggage position (better center of gravity, more concealed cargo), the Hyundai IONIQ with its significantly deeper cargo well can be advantageous — although with limited opening height for very tall items.