Where each one leads
Mercedes-Benz A-Class
- Against cars of the same age, the Mercedes-Benz A-Class comes out better at its first MOT test (passes 2% more often than average) than the Tesla Model 3 (passes 5% less often than average).
- Against cars of the same year, the Mercedes-Benz A-Class comes out better in New York safety inspections (fails 29% less often than average) than the Tesla Model 3 (fails 29% more often than average).
Tesla Model 3
- Fewer Tesla Model 3 cars in the Netherlands carry an illogical odometer record (2.6% against 3.6%).
- New Tesla Model 3 cars registered in Europe in 2022 average 0 g/km of CO₂ on the WLTP test, against 106 for the Mercedes-Benz A-Class in 2022.
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
| Mercedes-Benz A-Class | Tesla Model 3 | |
|---|---|---|
| Model years in the US safety record | — | 2017–2026 |
| New cars registered in Europe | 1,512,195 (2010–2022) | 336,489 (2019–2022) |
| Licensed in the United Kingdom | 390,433 | 132,950 |
| On the road in the Netherlands | 72,849 | 66,268 |
| In traffic in Finland | 16,775 | 14,948 |
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
| Mercedes-Benz A-Class | Tesla Model 3 | |
|---|---|---|
| UK MOT first-time pass rate | 76% | 83% |
| … against cars of the same age | +2% | −5% |
| New York safety inspections failed | 0.8% | 1.2% |
| … against cars of the same year | −29% | +29% |
| Illogical odometer records (NL) | 3.6% | 2.6% |
| US owner complaints | — | 4,371 |
| Most complaints about | — | Forward collision avoidance |
| Model year with most complaints | — | 2018 (1,033) |
| US recall campaigns | — | 36 |
| Manufacturer service bulletins | — | 803 |
| NHTSA defect investigations | — | 109 |
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
| Mercedes-Benz A-Class | Tesla Model 3 | |
|---|---|---|
| NHTSA overall rating | — | 5★ (2026) |
NHTSA New Car Assessment Program, most recent rated model year (public domain).
Fuel, emissions and price
| Mercedes-Benz A-Class | Tesla Model 3 | |
|---|---|---|
| Real-world use in Europe, diesel | 5.7 l/100 km | — |
| Real-world use in Europe, petrol | 7.8 l/100 km | — |
| Real-world use in Europe, petrol hybrid | 7.4 l/100 km | — |
| Official CO₂ of new cars in Europe | 106 g/km | 0 g/km |
| Average power of new cars in Europe | 112 kW (151 hp) | 201 kW (270 hp) |
| Average mass in running order | 1,509 kg | 1,875 kg |
| Dutch list price when new (median) | €37,030 | €51,179 |
| Average odometer in Finland | 131,000 km | 98,000 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).