Hyundai Ioniq 5 vs Kia EV9

The EV9 seats seven with 42+ inches of rear legroom that literally beats a Cadillac Escalade. The Ioniq 5 seats five with a flexible sliding second row. If you have three kids in car seats or regularly transport more than four people, the Ioniq 5 simply cannot do the job — full stop. If you don't, you're paying $13,000+ for space you'll never use.

The Ioniq 5 starts at $43,000; the EV9 starts at $56,395 — and neither currently qualifies for the full federal tax credit. That's a $13,000+ difference at entry level, and it widens fast as you option up. Worse, the EV9 is not currently eligible for the $7,500 federal EV tax credit, which means that sticker price is what you're actually paying. For families on a budget, the Ioniq 5 is the only realistic choice.

The EV9 has a clean reliability reputation out of the gate. The Ioniq 5 has a documented ICCU failure problem on pre-2025 models — we're talking main battery failures under 8,000 miles and lemon law claims. Hyundai addressed this in 2025, but if you're buying used or looking at a 2022-2024 model, this is not a minor footnote. It's a dealbreaker-level risk that the EV9 simply doesn't carry.

The Ioniq 5's retro sloped rear window looks great but eats into cargo volume — owners specifically call out the raised trunk floor and reduced usable space. The EV9's boxier shape gives you more practical cargo room behind the third row and a much larger area when that row is folded. For families hauling strollers, sports gear, and grocery runs simultaneously, this matters every single week.