Where each one leads
Chevrolet Impala
- On Canada's official test the most frugal 2020 Chevrolet Impala uses 10.9 l/100 km, the 2016 Porsche Panamera S 11.4.
Porsche Panamera S
Ahead on none of the like-for-like measures.
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
| Chevrolet Impala | Porsche Panamera S | |
|---|---|---|
| Model years in the US safety record | 1981–2020 | 2010–2016 |
| On the road in the Netherlands | 762 | — |
| In traffic in Finland | 277 | — |
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
| Chevrolet Impala | Porsche Panamera S | |
|---|---|---|
| New York safety inspections failed | 2.9% | — |
| … against cars of the same year | +28% | — |
| Illogical odometer records (NL) | 75.2% | — |
| US owner complaints | 10,426 | 7 |
| Most complaints about | Electrical system | Engine |
| Model year with most complaints | 2004 (1,073) | 2010 (5) |
| US recall campaigns | 34 | 4 |
| Manufacturer service bulletins | 19,789 | 1,544 |
| NHTSA defect investigations | 16 | — |
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
| Chevrolet Impala | Porsche Panamera S | |
|---|---|---|
| NHTSA overall rating | 5★ (2020) | — |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Chevrolet Impala | Porsche Panamera S | |
|---|---|---|
| Official combined fuel use, Canada | 10.9 l/100 km (2020) | 11.4 l/100 km (2016) |
| Average odometer in Finland | 50,000 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).