Muscle per Gallon: Large Cars
By
Rick Newman
Posted April 2, 2008
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 |
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