Biggest CO2 emissions

Since 1990s vehicle CO₂ emissions have decreased dramatically - thanks to advances in fuel injection technology, reduction of engine displacement and cylinder count (in exchange for turbocharging) and other technologies, like cylinder deactivation, start-stop and hybrid systems.

Fuel efficiency and CO₂ emissions go hand in hand as they are essentially the same quantity expressed in different terms. Therefore, it is possible to calculate emissions for given fuel consumption and vice versa.

CO₂ emissions and fuel consumption depend greatly on driving style and type of route. This list shows average CO₂ emissions across all available data, which can be diverse and include both highway and city driving data. It also includes both factual (measured) CO₂ emissions and calculated estimates.

Typically CO₂ emissions are measured in grams per kilometer (g/km). For this list grams per mile (g/m) is used instead.

#	make & model	G/m▼
1.	1965 Mercedes-Benz 600 Landaulet	827.2
2.	1963 Mercury Super Marauder 427	769.3
3.	2009 Lamborghini Murcielago LP 670-4 SV	766.0
4.	2002 Bentley Arnage R	762.8
5.	1967 Maserati Ghibli	761.2
6.	1974 Lamborghini Countach LP400	761.2
7.	1976 Maserati Kyalami	759.6
8.	1968 Maserati Indy 4200	758.0
9.	1975 Range Rover 3.5	756.4
10.	1969 Pontiac GTO 400	746.7
11.	2001 Aston Martin V12 Vanquish	738.7
12.	2003 Lamborghini Gallardo	733.9
13.	2009 Mercedes-Benz C 63 AMG Performance Package Plus	730.6
14.	1967 Chevrolet Camaro Z28	727.4
15.	1968 Jaguar XJ6 2.8	727.4
16.	1962 Ford Galaxie 500 Club Victoria (411 PS)	727.4
17.	1962 Pontiac Catalina 421	727.4
18.	1967 Chevrolet Impala SS 427	725.8
19.	1976 Aston Martin Lagonda	725.8
20.	1979 Maserati Quattroporte III	724.2
21.	1970 Aston Martin DBS V8	722.6
22.	1968 Opel Diplomat V8	722.6
23.	1956 Ford Thunderbird	722.6
24.	1957 Jaguar XK 150	721.0
25.	1966 Rambler American 290	721.0
26.	2010 Aston Martin Rapide	721.0
27.	1962 Chevrolet Impala SS 409	717.8
28.	1962 Dodge Dart 413	717.8
29.	1937 Cord 812 Supercharged	717.8
30.	1970 Oldsmobile Toronado GT	717.8
31.	1973 Bitter CD Coupe Diplomat	717.8
32.	1969 Dodge Coronet Super Bee 440 Six Pack	717.8
33.	1964 Chrysler Imperial Lebaron 4-door Sedan	717.8
34.	1966 Mercury Comet Cyclone GT 390	717.8
35.	1965 Chevrolet Caprice Custom Sedan 396	717.8
36.	1966 Oldsmobile Toronado	717.8
37.	1965 Buick Riviera Gran Sport	717.8
38.	1965 Plymouth Satellite 426 Street Hemi	717.8
39.	1966 Oldsmobile 4-4-2 Cutlass 400	717.8
40.	1966 Dodge Monaco Station Wagon 383	717.8