Muscle per Gallon: Large Cars

April 2, 2008 RSS Feed Print

To rate cars' mix of performance and fuel economy (the muscle per gallon index), we multiplied the horsepower rating by the city MPG number, then divided by 100.

Rank	Make	Model	Base MSRP	Engine Type	Horsepower	City MPG	Muscle per gallon index
1	Lexus	GS 450 Hybrid	$54,900	Gas/electric V6	292	22	64.2
2	Mercedes-Benz	E-Class	$85,300	Gas V8	507	12	60.8
3	Jaguar	S-Type	$64,335	Gas V8	400	15	60.0
4	Lexus	GS	$52,620	Gas V8	342	17	58.1
5	Mercedes-Benz	E-Class	$59,700	Gas V8	382	15	57.3
6	Audi	A6	$56,300	Gas V8	350	16	56.0
7	Chrysler	300-Series	$41,585	Gas V8	425	13	55.3
7	Dodge	Charger	$36,355	Gas V8	425	13	55.3
9	Lexus	GS	$46,100	Gas V6	303	18	54.5
10	Pontiac	G8	$29,310	Gas V8	361	15	54.2
11	BMW	5-Series	$58,500	Gas V8	360	15	54.0
12	Infiniti	M	$49,350	Gas V8	325	16	52.0
13	Cadillac	STS	$43,215	Gas V6	302	17	51.3
14	BMW	5-Series	$49,400	Turbocharged gas I6	300	17	51.0
15	Toyota	Avalon	$34,415	Gas V6	268	19	50.9
16	Chrysler	300-Series	$35,395	Gas V8	335	15	50.3
16	Dodge	Charger	$32,855	Gas V8	335	15	50.3
18	Chevrolet	Impala	$29,030	Gas V8	303	16	48.5
19	Cadillac	STS	$52,715	Gas V8	320	15	48.0
19	Jaguar	S-Type	$55,835	Gas V8	300	16	48.0
21	Ford	Taurus	$27,470	Gas V6	263	18	47.3
21	Mercury	Sable	$27,570	Gas V6	263	18	47.3
23	Volvo	S80	$49,210	Gas V8	311	15	46.7
24	Acura	RL	$49,900	Gas V6	290	16	46.4
25	Mercede- Benz	E-Class	$51,200	Gas V6	268	17	45.6
26	Volvo	S80	$42,045	Turbocharged gas I6	281	16	45.0
27	Kia	Amanti	$25,495	Gas V6	264	17	44.9
28	Hyundai	Azera	$28,550	Gas V6	263	17	44.7
29	Infiniti	M	$45,100	Gas V6	275	16	44.0
30	Cadillac	DTS	$50,120	Gas V8	292	15	43.8
31	Pontiac	G8	$26,910	Gas V6	256	17	43.5
32	Audi	A6	$46,100	Gas V6	255	17	43.4
33	Chrysler	300-Series	$31,620	Gas V6	250	17	42.5
34	Hyundai	Azera	$24,600	Gas V6	234	18	42.1
35	Buick	Lucerne	$36,510	Gas V8	275	15	41.3
35	Cadillac	DTS	$46,120	Gas V8	275	15	41.3
37	Jaguar	S-Type	$48,335	Gas V6	235	17	40.0
38	Chevrolet	Impala	$22,350	Gas V6	211	18	38.0
39	Volvo	S80	$38,705	Gas I6	235	16	37.6
40	Dodge	Charger	$28,035	Gas V6	250	15	37.5
41	Lincoln	Town Car	$45,040	Gas/ethanol V8	239	15	35.9
42	Mercury	Grand Marquis	$28,170	Gas/ethanol V8	224	15	33.6
43	Chrysler	300-Series	$24,595	Gas V6	186	18	33.5
44	Buick	Lucerne	$26,755	Gas V6	197	16	31.5