Where each one leads
Peugeot 308
- Against cars of the same age, the Peugeot 308 comes out better at its first MOT test (passes 7% less often than average) than the Renault Mégane (passes 16% less often than average).
- Fewer Peugeot 308 cars in the Netherlands carry an illogical odometer record (2.6% against 4.2%).
- New Peugeot 308 cars registered in Europe in 2022 average 108 g/km of CO₂ on the WLTP test, against 119 for the Renault Mégane in 2022.
- Measured by the cars' own fuel meters, the diesel Peugeot 308 uses 5.3 l/100 km on the road, the Renault Mégane 5.4.
- Measured by the cars' own fuel meters, the petrol Peugeot 308 uses 6.7 l/100 km on the road, the Renault Mégane 7.3.
Renault Mégane
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
| Peugeot 308 | Renault Mégane | |
|---|---|---|
| New cars registered in Europe | 1,728,682 (2010–2022) | 2,659,600 (2010–2022) |
| Licensed in the United Kingdom | 135,686 | 98,371 |
| On the road in the Netherlands | 61,858 | 95,123 |
| In traffic in Finland | 8,309 | 13,356 |
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
| Peugeot 308 | Renault Mégane | |
|---|---|---|
| UK MOT first-time pass rate | 65% | 54% |
| … against cars of the same age | −7% | −16% |
| Illogical odometer records (NL) | 2.6% | 4.2% |
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
| Peugeot 308 | Renault Mégane | |
|---|---|---|
| Real-world use in Europe, diesel | 5.3 l/100 km | 5.4 l/100 km |
| Real-world use in Europe, petrol | 6.7 l/100 km | 7.3 l/100 km |
| Real-world use in Europe, petrol hybrid | 6.2 l/100 km | — |
| Official CO₂ of new cars in Europe | 108 g/km | 119 g/km |
| Average power of new cars in Europe | 98 kW (132 hp) | 92 kW (123 hp) |
| Average mass in running order | 1,455 kg | 1,422 kg |
| Dutch list price when new (median) | €28,270 | €28,925 |
| Average odometer in Finland | 168,000 km | 207,000 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).

