Where each one leads
Aston Martin DBX
Ahead on none of the like-for-like measures.
Porsche Cayenne
- On Canada's official test the most frugal 2026 Porsche Cayenne uses 12.2 l/100 km, the 2024 Aston Martin DBX 14.6.
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
| Aston Martin DBX | Porsche Cayenne | |
|---|---|---|
| Model years in the US safety record | 2021–2026 | 2003–2026 |
| New cars registered in Europe | — | 52,584 (2010–2022) |
| Licensed in the United Kingdom | 1,704 | 40,392 |
| On the road in the Netherlands | — | 15,174 |
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
| Aston Martin DBX | Porsche Cayenne | |
|---|---|---|
| UK MOT first-time pass rate | — | 84% |
| … against cars of the same age | — | +16% |
| New York safety inspections failed | — | 0.6% |
| … against cars of the same year | — | −55% |
| Illogical odometer records (NL) | — | 2.8% |
| US owner complaints | 2 | 506 |
| Most complaints about | Structure | Power train |
| Model year with most complaints | 2024 (1) | 2014 (53) |
| US recall campaigns | 6 | 27 |
| Manufacturer service bulletins | 104 | 6,986 |
| NHTSA defect investigations | — | 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).
Fuel, emissions and price
| Aston Martin DBX | Porsche Cayenne | |
|---|---|---|
| Official combined fuel use, Canada | 14.6 l/100 km (2024) | 12.2 l/100 km (2026) |
| Real-world use in Europe, petrol | — | 13.1 l/100 km |
| Official CO₂ of new cars in Europe | — | 250 g/km |
| Average power of new cars in Europe | — | 253 kW (340 hp) |
| Average mass in running order | — | 2,125 kg |
| Dutch list price when new (median) | — | €136,247 |
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).