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 Subaru WRX (fails 1% less often than average).
- On Canada's official test the most frugal 2026 Audi A6 uses 10.2 l/100 km, the 2026 Subaru WRX 10.9.
- New Audi A6 cars registered in Europe in 2022 average 131 g/km of CO₂ on the WLTP test, against 142 for the Subaru WRX in 2022.
Subaru WRX
- Against cars of the same age, the Subaru WRX comes out better at its first MOT test (passes 20% more often than average) than the Audi A6 (passes 11% more often than average).
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 | Subaru WRX | |
|---|---|---|
| Model years in the US safety record | 1994–2026 | 2002–2025 |
| New cars registered in Europe | 411,334 (2010–2022) | 2,661 (2014–2022) |
| Licensed in the United Kingdom | 129,627 | 1,550 |
| On the road in the Netherlands | 17,710 | — |
| In traffic in Finland | 12,113 | — |
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 | Subaru WRX | |
|---|---|---|
| UK MOT first-time pass rate | 79% | 91% |
| … against cars of the same age | +11% | +20% |
| New York safety inspections failed | 1.2% | 1.3% |
| … against cars of the same year | −32% | −1% |
| Illogical odometer records (NL) | 4.2% | — |
| US owner complaints | 1,662 | 978 |
| Most complaints about | Electrical system | Fuel system, gasoline |
| Model year with most complaints | 1999 (217) | 2002 (427) |
| US recall campaigns | 54 | 23 |
| Manufacturer service bulletins | 17,761 | 3,459 |
| NHTSA defect investigations | 26 | 11 |
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 | Subaru WRX | |
|---|---|---|
| NHTSA overall rating | 5★ (2021) | 5★ (2027) |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Audi A6 | Subaru WRX | |
|---|---|---|
| Official combined fuel use, Canada | 10.2 l/100 km (2026) | 10.9 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 | 142 g/km |
| Average power of new cars in Europe | 174 kW (233 hp) | 197 kW (264 hp) |
| Average mass in running order | 1,842 kg | 1,450 kg |
| Dutch list price when new (median) | €71,765 | — |
| Average odometer in Finland | 285,000 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).