Where each one leads
Mercury Cougar
- On Canada's official test the most frugal 1999 Mercury Cougar uses 9.5 l/100 km, the 1995 Porsche 928 15.8.
Porsche 928
- Against cars of the same year, the Porsche 928 comes out better in New York safety inspections (fails 40% less often than average) than the Mercury Cougar (fails 42% more often than average).
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
| Mercury Cougar | Porsche 928 | |
|---|---|---|
| Model years in the US safety record | 1981–2002 | 1981–1995 |
| Licensed in the United Kingdom | — | 700 |
| On the road in the Netherlands | — | 813 |
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
| Mercury Cougar | Porsche 928 | |
|---|---|---|
| New York safety inspections failed | 1.9% | 0.5% |
| … against cars of the same year | +42% | −40% |
| Illogical odometer records (NL) | — | 40.3% |
| US owner complaints | 1,886 | 3 |
| Most complaints about | Engine and engine cooling | Power train |
| Model year with most complaints | 1999 (454) | 1981 (1) |
| US recall campaigns | 27 | 7 |
| Manufacturer service bulletins | 1,197 | 1,084 |
| NHTSA defect investigations | 41 | — |
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
| Mercury Cougar | Porsche 928 | |
|---|---|---|
| Official combined fuel use, Canada | 9.5 l/100 km (1999) | 15.8 l/100 km (1995) |
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).

