Where each one leads
Audi A6
- Against cars of the same year, the Audi A6 comes out better in New York safety inspections (fails 32% less often than average) than the Hyundai Ioniq 6 (fails 23% more often than average).
Hyundai Ioniq 6
- Fewer Hyundai Ioniq 6 cars in the Netherlands carry an illogical odometer record (1.0% against 4.2%).
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
| Audi A6 | Hyundai Ioniq 6 | |
|---|---|---|
| Model years in the US safety record | 1994–2026 | 2023–2025 |
| New cars registered in Europe | 411,334 (2010–2022) | — |
| Licensed in the United Kingdom | 129,627 | — |
| On the road in the Netherlands | 17,710 | 2,214 |
| In traffic in Finland | 12,113 | 537 |
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
| Audi A6 | Hyundai Ioniq 6 | |
|---|---|---|
| UK MOT first-time pass rate | 79% | — |
| … against cars of the same age | +11% | — |
| New York safety inspections failed | 1.2% | 0.7% |
| … against cars of the same year | −32% | +23% |
| Illogical odometer records (NL) | 4.2% | 1.0% |
| US owner complaints | 1,662 | 131 |
| Most complaints about | Electrical system | Electrical system |
| Model year with most complaints | 1999 (217) | 2023 (56) |
| US recall campaigns | 54 | 6 |
| Manufacturer service bulletins | 17,761 | 22 |
| NHTSA defect investigations | 26 | 1 |
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
| Audi A6 | Hyundai Ioniq 6 | |
|---|---|---|
| NHTSA overall rating | 5★ (2021) | 5★ (2025) |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Audi A6 | Hyundai Ioniq 6 | |
|---|---|---|
| Official combined fuel use, Canada | 10.2 l/100 km (2026) | — |
| Real-world use in Europe, diesel hybrid | 6.9 l/100 km | — |
| Real-world use in Europe, petrol hybrid | 9.2 l/100 km | — |
| Real-world use in Europe, diesel | 6.7 l/100 km | — |
| Official CO₂ of new cars in Europe | 131 g/km | — |
| Average power of new cars in Europe | 174 kW (233 hp) | — |
| Average mass in running order | 1,842 kg | — |
| Dutch list price when new (median) | €71,765 | €55,195 |
| Average odometer in Finland | 285,000 km | 24,000 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).