Where each one leads
Acura MDX
- NHTSA rates the 2027 Acura MDX at 5 of 5 stars, the 2026 BMW X1 at 4.
BMW X1
- On Canada's official test the most frugal 2026 BMW X1 uses 8.3 l/100 km, the 2026 Acura MDX 11.2.
Too close to call: new York safety inspections failed, against cars of the same year.
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
| Acura MDX | BMW X1 | |
|---|---|---|
| Model years in the US safety record | 2001–2026 | 2012–2026 |
| New cars registered in Europe | — | 875,480 (2010–2022) |
| Licensed in the United Kingdom | — | 129,723 |
| On the road in the Netherlands | — | 37,338 |
| In traffic in Finland | — | 8,089 |
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
| Acura MDX | BMW X1 | |
|---|---|---|
| UK MOT first-time pass rate | — | 83% |
| … against cars of the same age | — | +7% |
| New York safety inspections failed | 1.0% | 0.9% |
| … against cars of the same year | −35% | −34% |
| Illogical odometer records (NL) | — | 1.5% |
| US owner complaints | 3,319 | 674 |
| Most complaints about | Power train | Unknown or other |
| Model year with most complaints | 2016 (377) | 2016 (159) |
| US recall campaigns | 42 | 20 |
| Manufacturer service bulletins | 3,072 | 911 |
| NHTSA defect investigations | 43 | 4 |
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
| Acura MDX | BMW X1 | |
|---|---|---|
| NHTSA overall rating | 5★ (2027) | 4★ (2026) |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Acura MDX | BMW X1 | |
|---|---|---|
| Official combined fuel use, Canada | 11.2 l/100 km (2026) | 8.3 l/100 km (2026) |
| Real-world use in Europe, diesel | — | 6.1 l/100 km |
| Real-world use in Europe, petrol | — | 7.6 l/100 km |
| Real-world use in Europe, diesel hybrid | — | 6.0 l/100 km |
| Real-world use in Europe, petrol hybrid | — | 7.4 l/100 km |
| Official CO₂ of new cars in Europe | — | 117 g/km |
| Average power of new cars in Europe | — | 108 kW (144 hp) |
| Average mass in running order | — | 1,665 kg |
| Dutch list price when new (median) | — | €53,202 |
| Average odometer in Finland | — | 150,000 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).