Least efficient cars in Australia

Ranked by what they cost to fuel for a year at 14,000km. Cost is used rather than litres so that electric cars, which have no litres figure, can be compared with petrol and diesel on the same list. Cars sold before 2004 are excluded, as they were measured on a different test.

#	Car	Cost/year	Fuel use	Electric range	CO₂ lifecycle
1	2010 Aston Martin One-77	$6,725	23.9 L/100km	–	693
2	2009 Lamborghini Murcielago LP 640	$6,232	21.3 L/100km	–	618
3	2009 Lamborghini Murcielago LP 640 Roadster	$6,232	21.3 L/100km	–	618
4	2009 Lamborghini Murcielago LP 670-4SV	$6,028	20.6 L/100km	–	598
5	2019 Lamborghini Aventador S	$5,881	20.1 L/100km	–	583
6	2019 Lamborghini Aventador S Roadster	$5,881	20.1 L/100km	–	583
7	2019 Lamborghini Aventador SV J	$5,735	19.6 L/100km	–	569
8	2009 Bentley Arnage R	$5,706	19.5 L/100km	–	566
9	2009 Bentley Arnage RL	$5,706	19.5 L/100km	–	566
10	2009 Bentley Arnage T	$5,706	19.5 L/100km	–	566
11	2009 Bentley Azure	$5,706	19.5 L/100km	–	566
12	2009 Bentley Azure T	$5,706	19.5 L/100km	–	566
13	2009 Bentley Brooklands	$5,706	19.5 L/100km	–	566
14	2011 Lamborghini Aventador LP700-4	$5,033	17.2 L/100km	–	499
15	2012 Lamborghini Aventador LP700-4	$5,033	17.2 L/100km	–	499
16	2014 Lamborghini Aventador LP720-4	$5,033	17.2 L/100km	–	499
17	2010 Bentley Mulsanne	$4,945	16.9 L/100km	–	490
18	2012 Bentley Mulsanne	$4,945	16.9 L/100km	–	490
19	2008 Bentley Continental Flying Spur	$4,857	16.6 L/100km	–	482
20	2008 Bentley Continental Flying Spur Speed	$4,857	16.6 L/100km	–	482
21	2008 Bentley Continental GT	$4,857	16.6 L/100km	–	482
22	2008 Bentley Continental GT Speed	$4,857	16.6 L/100km	–	482
23	2008 Bentley Continental GTC	$4,857	16.6 L/100km	–	482
24	2009 Bentley Continental GTC Speed	$4,857	16.6 L/100km	–	482
25	2008 HSV W427	$4,840	17.2 L/100km	–	499
26	2011 Bentley Continental GT	$4,828	16.5 L/100km	–	479
27	2010 Rolls-Royce Phantom	$4,828	16.5 L/100km	–	479
28	2009 Bentley Continental Supersports	$4,769	16.3 L/100km	–	473
29	2010 Bentley Continental Supersports	$4,769	16.3 L/100km	–	473
30	2010 Bentley Continental Supersports Convertible	$4,769	16.3 L/100km	–	473
31	2015 Lamborghini Aventador LP700-4	$4,682	16.0 L/100km	–	464
32	2015 Lamborghini Aventador LP700-4 Roadster	$4,682	16.0 L/100km	–	464
33	2015 Lamborghini Aventador LP750-4 Superveloce	$4,682	16.0 L/100km	–	464
34	2017 Bentley Continental Supersports Convertible	$4,652	15.9 L/100km	–	461
35	2004 Maybach 57	$4,652	15.9 L/100km	–	461
36	2004 Maybach 62	$4,652	15.9 L/100km	–	461
37	2017 HSV GTS-R W1	$4,643	16.5 L/100km	–	479
38	2008 Aston Martin DB9	$4,615	16.4 L/100km	–	476
39	2008 Aston Martin DB9 Volante	$4,615	16.4 L/100km	–	476
40	2009 Aston Martin V12 Vantage	$4,615	16.4 L/100km	–	476
41	2010 Aston Martin V12 Vantage	$4,615	16.4 L/100km	–	476
42	2011 Aston Martin V12 Vantage	$4,615	16.4 L/100km	–	476
43	2012 Aston Martin V12 Vantage	$4,615	16.4 L/100km	–	476
44	2012 Aston Martin V12 Vantage Roadster	$4,615	16.4 L/100km	–	476
45	2012 Aston Martin V12 Zagato	$4,615	16.4 L/100km	–	476
46	2024 Aston Martin Vantage	$4,615	16.4 L/100km	–	476
47	2006 Maybach 57S	$4,615	16.4 L/100km	–	476
48	2017 Bentley Continental Supersports	$4,594	15.7 L/100km	–	455
49	2007 Rolls-Royce Phantom	$4,594	15.7 L/100km	–	455
50	2009 Koenigsegg CC	$4,446	15.8 L/100km	–	458
51	2018 Rolls-Royce Cullinan	$4,418	15.1 L/100km	–	438
52	2021 Rolls-Royce Ghost	$4,418	15.1 L/100km	–	438
53	2008 Jeep Commander	$4,390	15.6 L/100km	–	453
54	2016 Bentley Mulsanne	$4,389	15.0 L/100km	–	435
55	2016 Bentley Mulsanne Speed	$4,389	15.0 L/100km	–	435
56	2009 Aston Martin DBS	$4,362	15.5 L/100km	–	450
57	2010 Aston Martin DBS	$4,362	15.5 L/100km	–	450
58	2009 Aston Martin DBS Volante	$4,362	15.5 L/100km	–	450
59	2010 Aston Martin DBS Volante	$4,362	15.5 L/100km	–	450
60	2017 HSV Maloo GTS-R	$4,362	15.5 L/100km	–	450
61	2017 HSV Maloo R8 LSA	$4,362	15.5 L/100km	–	450
62	2014 Bentley Continental GT Convertible	$4,360	14.9 L/100km	–	432
63	2013 Bentley Continental GT Speed Convertible	$4,360	14.9 L/100km	–	432
64	2014 Bentley Continental GT Speed Convertible	$4,360	14.9 L/100km	–	432
65	2015 Bentley Continental GT Speed Convertible	$4,360	14.9 L/100km	–	432
66	2012 Bentley Continental GTC	$4,360	14.9 L/100km	–	432
67	2005 BMW M6	$4,330	14.8 L/100km	–	429
68	2006 BMW M6	$4,330	14.8 L/100km	–	429
69	2015 Infiniti QX80	$4,330	14.8 L/100km	–	429
70	2012 Rolls-Royce Phantom Series II	$4,330	14.8 L/100km	–	429
71	2015 HSV Maloo GTS	$4,305	15.3 L/100km	–	444
72	2015 HSV Maloo R8 LSA	$4,305	15.3 L/100km	–	444
73	2013 Bentley Flying Spur W12	$4,301	14.7 L/100km	–	426
74	2014 Bentley Flying Spur W12	$4,301	14.7 L/100km	–	426
75	2016 Bentley Flying Spur W12	$4,301	14.7 L/100km	–	426
76	2016 Bentley Flying Spur W12 S	$4,301	14.7 L/100km	–	426
77	2015 Bentley Continental GT Speed	$4,272	14.6 L/100km	–	424
78	2014 Bentley Mulsanne	$4,272	14.6 L/100km	–	424
79	2014 Bentley Mulsanne Speed	$4,272	14.6 L/100km	–	424
80	2024 Mercedes-Benz GT	$4,272	14.6 L/100km	–	424
81	2017 HSV Clubsport R8 LSA	$4,249	15.1 L/100km	–	438
82	2017 HSV Senator Signature	$4,249	15.1 L/100km	–	438
83	2012 Bentley Continental GT	$4,243	14.5 L/100km	–	421
84	2014 Bentley Continental GT	$4,243	14.5 L/100km	–	421
85	2012 Bentley Continental GT Speed	$4,243	14.5 L/100km	–	421
86	2014 Bentley Continental GT Speed	$4,243	14.5 L/100km	–	421
87	2018 Infiniti QX80	$4,243	14.5 L/100km	–	421
88	2011 Aston Martin Virage	$4,221	15.0 L/100km	–	435
89	2015 HSV Clubsport R8 LSA	$4,221	15.0 L/100km	–	435
90	2017 HSV Clubsport R8 Tourer	$4,221	15.0 L/100km	–	435
91	2015 HSV GTS	$4,221	15.0 L/100km	–	435
92	2017 HSV GTS	$4,221	15.0 L/100km	–	435
93	2017 HSV GTS-R	$4,221	15.0 L/100km	–	435
94	2015 HSV Senator Signature	$4,221	15.0 L/100km	–	435
95	2005 Land Rover Discovery 3	$4,221	15.0 L/100km	–	435
96	2015 Bentley Flying Spur W12	$4,213	14.4 L/100km	–	418
97	2010 Aston Martin Rapide	$4,193	14.9 L/100km	–	432
98	2005 Land Rover Range Rover Vogue	$4,193	14.9 L/100km	–	432
99	2015 Bentley Continental GT Convertible	$4,184	14.3 L/100km	–	415
100	2006 Mercedes-Benz SL Class	$4,184	14.3 L/100km	–	415

By model year

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