Where each one leads
Audi A5 Sportback
- Fewer Audi A5 Sportback cars in the Netherlands carry an illogical odometer record (2.0% against 3.0%).
Opel Astra
- New Opel Astra cars registered in Europe in 2022 average 104 g/km of CO₂ on the WLTP test, against 150 for the Audi A5 Sportback in 2022.
- Measured by the cars' own fuel meters, the petrol Opel Astra uses 6.4 l/100 km on the road, the Audi A5 Sportback 8.4.
- Measured by the cars' own fuel meters, the diesel Opel Astra uses 5.6 l/100 km on the road, the Audi A5 Sportback 6.5.
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 A5 Sportback | Opel Astra | |
|---|---|---|
| Model years in the US safety record | 2018–2025 | — |
| New cars registered in Europe | 214,745 (2010–2022) | 1,495,239 (2010–2022) |
| On the road in the Netherlands | 9,542 | 120,533 |
| In traffic in Finland | 2,829 | 42,673 |
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 A5 Sportback | Opel Astra | |
|---|---|---|
| Illogical odometer records (NL) | 2.0% | 3.0% |
| US owner complaints | 1 | — |
| Most complaints about | Engine | — |
| Model year with most complaints | 2025 (1) | — |
| Manufacturer service bulletins | 1,523 | — |
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 A5 Sportback | Opel Astra | |
|---|---|---|
| NHTSA overall rating | 5★ (2025) | — |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Audi A5 Sportback | Opel Astra | |
|---|---|---|
| Official combined fuel use, Canada | 8.8 l/100 km (2025) | — |
| Real-world use in Europe, diesel hybrid | 6.5 l/100 km | — |
| Real-world use in Europe, petrol hybrid | 8.0 l/100 km | — |
| Real-world use in Europe, petrol | 8.4 l/100 km | 6.4 l/100 km |
| Real-world use in Europe, diesel | 6.5 l/100 km | 5.6 l/100 km |
| Official CO₂ of new cars in Europe | 150 g/km | 104 g/km |
| Average power of new cars in Europe | 145 kW (195 hp) | 96 kW (129 hp) |
| Average mass in running order | 1,637 kg | 1,440 kg |
| Dutch list price when new (median) | €58,105 | €27,155 |
| Average odometer in Finland | 169,000 km | 188,000 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).