Where each one leads
Hyundai Ioniq 6
- Against cars of the same year, the Hyundai Ioniq 6 comes out better in New York safety inspections (fails 23% more often than average) than the Nissan Leaf (fails 43% more often than average).
- Fewer Hyundai Ioniq 6 cars in the Netherlands carry an illogical odometer record (1.0% against 2.1%).
Nissan Leaf
Ahead on none of the like-for-like measures.
Too close to call: NHTSA overall safety rating.
Only measures that do not depend on how many cars were sold: pass and failure rates against cars of the same age, ratings, fuel use and CO₂. How we compare
At a glance
| Hyundai Ioniq 6 | Nissan Leaf | |
|---|---|---|
| Model years in the US safety record | 2023–2025 | 2010–2026 |
| New cars registered in Europe | — | 195,023 (2010–2022) |
| Licensed in the United Kingdom | — | 60,914 |
| On the road in the Netherlands | 2,214 | 12,463 |
| In traffic in Finland | 537 | 4,560 |
EEA new-car registrations (CC BY 4.0) · DVLA licensed vehicles (OGL v3.0) · RDW (CC0) · Traficom (CC BY 4.0) · generations: Wikidata (CC0).
Reliability and problems
| Hyundai Ioniq 6 | Nissan Leaf | |
|---|---|---|
| UK MOT first-time pass rate | — | 82% |
| … against cars of the same age | — | average |
| New York safety inspections failed | 0.7% | 1.9% |
| … against cars of the same year | +23% | +43% |
| Illogical odometer records (NL) | 1.0% | 2.1% |
| US owner complaints | 131 | 1,114 |
| Most complaints about | Electrical system | Electrical system |
| Model year with most complaints | 2023 (56) | 2019 (260) |
| US recall campaigns | 6 | 20 |
| Manufacturer service bulletins | 22 | 1,343 |
| NHTSA defect investigations | 1 | 20 |
Complaint, recall and bulletin counts grow with the number of cars sold and are not adjusted for it. UK MOT: DVSA anonymised MOT results (OGL v3.0); New York: DMV inspections; complaints, recalls, bulletins and investigations: NHTSA (public domain); odometer: RDW (CC0).
Safety
| Hyundai Ioniq 6 | Nissan Leaf | |
|---|---|---|
| NHTSA overall rating | 5★ (2025) | 5★ (2021) |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Hyundai Ioniq 6 | Nissan Leaf | |
|---|---|---|
| Official CO₂ of new cars in Europe | — | 0 g/km |
| Average power of new cars in Europe | — | 120 kW (161 hp) |
| Average mass in running order | — | 1,631 kg |
| Dutch list price when new (median) | €55,195 | €36,750 |
| Average odometer in Finland | 24,000 km | 89,000 km |
Canada: NRCan Fuel Consumption Ratings, most frugal version of the latest year (OGL Canada). Europe: EEA monitoring of new-car CO₂ and on-board fuel meters (OBFCM), CC BY 4.0. Price: RDW catalogue price (CC0). Finland: Traficom (CC BY 4.0).