Where each one leads
Renault Mégane
- New Renault Mégane cars registered in Europe in 2022 average 119 g/km of CO₂ on the WLTP test, against 134 for the Vauxhall Insignia in 2020.
Vauxhall Insignia
- Against cars of the same age, the Vauxhall Insignia comes out better at its first MOT test (passes 5% less often than average) than the Renault Mégane (passes 16% less 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
| Renault Mégane | Vauxhall Insignia | |
|---|---|---|
| New cars registered in Europe | 2,659,600 (2010–2022) | 265,570 (2010–2020) |
| Licensed in the United Kingdom | 98,371 | 170,712 |
| On the road in the Netherlands | 95,123 | — |
| In traffic in Finland | 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
| Renault Mégane | Vauxhall Insignia | |
|---|---|---|
| UK MOT first-time pass rate | 54% | 68% |
| … against cars of the same age | −16% | −5% |
| Illogical odometer records (NL) | 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
| Renault Mégane | Vauxhall Insignia | |
|---|---|---|
| Real-world use in Europe, diesel | 5.4 l/100 km | — |
| Real-world use in Europe, petrol | 7.3 l/100 km | — |
| Official CO₂ of new cars in Europe | 119 g/km | 134 g/km |
| Average power of new cars in Europe | 92 kW (123 hp) | — |
| Average mass in running order | 1,422 kg | 1,512 kg |
| Dutch list price when new (median) | €28,925 | — |
| Average odometer in Finland | 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).

