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 in a genuinely roomy cabin, but when grandma visits or you're carpooling three kids to soccer, you're renting a minivan. This isn't a minor spec difference — it's a completely different vehicle category that determines whether this car works for your family at all.

The Ioniq 5 starts at $43,000; the EV9 starts at $56,395 — and the EV9 currently doesn't qualify for the $7,500 federal tax credit, making the real-world gap even wider. That's a car payment for two years. If you don't need the third row, you're paying a massive premium for space you'll never use. If you do need it, the EV9 is still cheaper than a Rivian R1S and far better equipped.

Pre-2025 Ioniq 5 models have a well-known ICCU (integrated charging control unit) failure issue — there are lemon law cases, Reddit threads, and enough complaints that it's impossible to ignore. One owner in the community had their main battery fail under 8,000 miles. Hyundai addressed it in 2025 models, but it's a real risk on used or older inventory. The EV9 has no equivalent systemic issue and carries a 91/100 consensus score across expert reviewers.

The Ioniq 5's retro sloped rear window looks great in a school pickup line but shrinks usable cargo space — community members specifically called out the raised trunk floor and sloped window as real-world limitations. The EV9 trades some cargo room for passenger space in the third row, but its boxy shape is more honest about what it is. Neither is a cargo champion, but the Ioniq 5's styling compromise is more frustrating because it's avoidable.