Kg CO2 per litre of petrol vehicles

Petrol produces 2.3035 kgs of CO2 per litre burnt. The precise figures depend on the quality of the fuel. Since fuel weighs less than a kilogram per litre, it is interesting to see how the weight of emissions is multiplied by the addition of oxygen. The tables below show how the official test figures for CO2 emissions and combined MPG can be equated to see how individual vehicles perform in terms of CO2 per litre. Some cars appear to do better than the standard chemistry would suggest, whereas others do worse. The official tests measure exhaust gases only and then calculate the fuel consumption. So these figures show how far off the recording of test results can be due to errors, rounding differences, and the leeway of around 4% given to manufacturers to decide on which fuel consumption figure to use.

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Top 10 CO2 per litre petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makeRolls-RoycemodelPhantomderivative6.75 V12 AutoWLTP CO2kg/l1.75WLTP CO2gpkm341Litre per 100km19.48MPG (combined)14.5
makeFiatmodelTipo Saloonderivative1.4 Easy 95HPWLTP CO2kg/l1.93WLTP CO2gpkm129Litre per 100km6.69MPG (combined)42.2
makeDSmodelDS 7 CROSSBACKderivativePureTech 130 Performance LineWLTP CO2kg/l1.95WLTP CO2gpkm143Litre per 100km7.34MPG (combined)38.5
makeLamborghinimodelHuracan EVO Spyderderivative5.2 V10 MPI 640 AutoWLTP CO2kg/l1.99WLTP CO2gpkm338Litre per 100km17.02MPG (combined)16.6
makeCitroenmodelC1derivativeVTi 72 S&S Touch 3-doorWLTP CO2kg/l2WLTP CO2gpkm108Litre per 100km5.41MPG (combined)52.2
makeMitsubishimodelEclipse Crossderivative1.5 MIVEC Verve 161hpWLTP CO2kg/l2WLTP CO2gpkm170Litre per 100km8.51MPG (combined)33.2
makeVolvomodelXC40derivativeT4 Momentum 190hp Automatic OldWLTP CO2kg/l2WLTP CO2gpkm154Litre per 100km7.7MPG (combined)36.7
makeLamborghinimodelHuracan EVOderivative5.2 V10 MPI 640 AutoWLTP CO2kg/l2.01WLTP CO2gpkm332Litre per 100km16.52MPG (combined)17.1
makeBMWmodel2 Series Gran Tourerderivative220i Sport Sport-AutoWLTP CO2kg/l2.02WLTP CO2gpkm158Litre per 100km7.8MPG (combined)36.2
makeNissanmodelX-Trailderivative1.3 DIG-T 160 N-Connecta DCT 7-seatWLTP CO2kg/l2.02WLTP CO2gpkm168Litre per 100km8.31MPG (combined)34
Bottom 10 CO2 per litre petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makePeugeotmodel3008 SUVderivative1.6L PureTech GT Line 180 EAT8 S&SWLTP CO2kg/l3.19WLTP CO2gpkm165Litre per 100km5.17MPG (combined)54.6
makeFordmodelFiesta 3 Doorderivative1.0T EcoBoost ST-Line X Edition 125PSWLTP CO2kg/l2.95WLTP CO2gpkm130Litre per 100km4.4MPG (combined)64.2
makeFordmodelFiesta 5 Doorderivative1.0T EcoBoost ST-Line X Edition 125PSWLTP CO2kg/l2.95WLTP CO2gpkm130Litre per 100km4.4MPG (combined)64.2
makeFordmodelFiesta 3 Doorderivative1.0T EcoBoost ST-Line X Edition 95PSWLTP CO2kg/l2.93WLTP CO2gpkm129Litre per 100km4.4MPG (combined)64.2
makeFordmodelFiesta 5 Doorderivative1.0T EcoBoost ST-Line X Edition 95PSWLTP CO2kg/l2.93WLTP CO2gpkm129Litre per 100km4.4MPG (combined)64.2
makePorschemodelCayenne Sderivative3.0 V6 S Tiptronic SWLTP CO2kg/l2.9WLTP CO2gpkm267Litre per 100km9.2MPG (combined)30.7
makeJaguarmodelXF Sportbrakederivative2.0 Petrol R-Sport 250PS RWD AutoWLTP CO2kg/l2.86WLTP CO2gpkm192Litre per 100km6.71MPG (combined)42.1
makeFordmodelFiesta Active 5 Doorderivative1.0T EcoBoost Active X Edition 95PSWLTP CO2kg/l2.82WLTP CO2gpkm124Litre per 100km4.4MPG (combined)64.2
makePeugeotmodel3008 SUVderivative1.6L PureTech GT Line Premium 180 EAT8 S&SWLTP CO2kg/l2.79WLTP CO2gpkm167Litre per 100km5.98MPG (combined)47.2
makeSEATmodelTarracoderivativeXCELLENCE 2.0 TSI DSG-auto 4Drive 190PSWLTP CO2kg/l2.79WLTP CO2gpkm206Litre per 100km7.39MPG (combined)38.2

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