Where each one leads
BMW 428i
- On Canada's official test the most frugal 2016 BMW 428i uses 8.4 l/100 km, the 2011 Mazda RX-8 12.8.
Mazda RX-8
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
| BMW 428i | Mazda RX-8 | |
|---|---|---|
| Model years in the US safety record | 2014–2016 | 2004–2017 |
| Licensed in the United Kingdom | — | 1,923 |
| On the road in the Netherlands | — | 498 |
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
| BMW 428i | Mazda RX-8 | |
|---|---|---|
| UK MOT first-time pass rate | — | 68% |
| … against cars of the same age | — | +19% |
| New York safety inspections failed | — | 1.5% |
| … against cars of the same year | — | −36% |
| Illogical odometer records (NL) | — | 10.0% |
| US owner complaints | 158 | 784 |
| Most complaints about | Electrical system | Power train |
| Model year with most complaints | 2015 (78) | 2004 (490) |
| US recall campaigns | 7 | 14 |
| Manufacturer service bulletins | 1,178 | 1,533 |
| NHTSA defect investigations | 3 | 21 |
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
| BMW 428i | Mazda RX-8 | |
|---|---|---|
| Official combined fuel use, Canada | 8.4 l/100 km (2016) | 12.8 l/100 km (2011) |
| Dutch list price when new (median) | — | €47,360 |
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).