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
makeMercedes-BenzmodelE-Class EstatederivativeE 53 AMG Night Edition Premium Plus 4MATIC SPEEDSHIFT TCTWLTP CO2kg/l1.76WLTP CO2gpkm218Litre per 100km12.39MPG (combined)22.8
makeMercedes-BenzmodelE-Class SaloonderivativeE 53 AMG Night Edition Premium Plus 4MATIC+ SPEEDSHIFT TCTWLTP CO2kg/l1.77WLTP CO2gpkm215Litre per 100km12.18MPG (combined)23.2
makeKiamodelThe all-new Sportagederivative1.6 T-GDi 2 148hp ISGWLTP CO2kg/l1.79WLTP CO2gpkm152Litre per 100km8.51MPG (combined)33.2
makeKiamodelThe all-new Sportagederivative1.6 T-GDi GT-Line 148hp ISGWLTP CO2kg/l1.81WLTP CO2gpkm154Litre per 100km8.51MPG (combined)33.2
makeCitroenmodelC4derivativePureTech 130 C-Series Edition S&SWLTP CO2kg/l1.87WLTP CO2gpkm121Litre per 100km6.48MPG (combined)43.6
makeCitroenmodelC4derivativePureTech 130 C-Series Edition S&S EAT8WLTP CO2kg/l1.87WLTP CO2gpkm130Litre per 100km6.96MPG (combined)40.6
makeCitroenmodelC4derivativePureTech 100 Sense S&SWLTP CO2kg/l1.88WLTP CO2gpkm122Litre per 100km6.48MPG (combined)43.6
makeCitroenmodelC4derivativePureTech 130 Sense Plus S&S EAT8WLTP CO2kg/l1.88WLTP CO2gpkm131Litre per 100km6.96MPG (combined)40.6
makeCitroenmodelC4derivativePureTech 130 Sense Plus S&SWLTP CO2kg/l1.9WLTP CO2gpkm123Litre per 100km6.48MPG (combined)43.6
Bottom 10 CO2 per litre petrol vehicles
make model derivative WLTP CO2 (kg/l) WLTP CO2 (gpkm) Litre per 100km MPG (combined)
makePeugeotmodel2008 SUVderivative1.2L PureTech GT Premium 155 EAT8 S&SWLTP CO2kg/l3.26WLTP CO2gpkm140Litre per 100km4.3MPG (combined)65.7
makeLand RovermodelDefender 90derivative5.0 P525 V8 AWD AutoWLTP CO2kg/l2.99WLTP CO2gpkm330Litre per 100km11.03MPG (combined)25.6
makeLand RovermodelDefender 110derivative5.0 P525 V8 AWD AutoWLTP CO2kg/l2.98WLTP CO2gpkm334Litre per 100km11.21MPG (combined)25.2
makeFordmodelNew Ranger Raptorderivative3.0L EcoBoost V6 Double Cab Raptor 288PS AutoWLTP CO2kg/l2.67WLTP CO2gpkm315Litre per 100km11.82MPG (combined)23.9
makeVolkswagenmodelTiguanderivative2.0 TSI Elegance 190PS 4MOTION DSGWLTP CO2kg/l2.6WLTP CO2gpkm192Litre per 100km7.39MPG (combined)38.2
makeFordmodelNew Fiesta 5 Doorderivative1.0L EcoBoost ST-Line X 100PSWLTP CO2kg/l2.59WLTP CO2gpkm132Litre per 100km5.1MPG (combined)55.4
makeAlpinamodelB3 Saloonderivative3.0 B3 BiTurbo 462hp Sport-AutoWLTP CO2kg/l2.57WLTP CO2gpkm252Litre per 100km9.81MPG (combined)28.8
makeAlpinamodelB3 Touringderivative3.0 B3 BiTurbo 462hp Sport-AutoWLTP CO2kg/l2.57WLTP CO2gpkm252Litre per 100km9.81MPG (combined)28.8
makeFordmodelNew Fiesta Active 5 Doorderivative1.0L EcoBoost Active X 100PSWLTP CO2kg/l2.57WLTP CO2gpkm131Litre per 100km5.1MPG (combined)55.4
makeLamborghinimodelUrusderivative4.0T FSI V8 AutoWLTP CO2kg/l2.55WLTP CO2gpkm325Litre per 100km12.72MPG (combined)22.2

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