Luxury Large Car
1st Place (tie): Jaguar XJ8/XJ8 LCombined EPA Fuel Economy: 21
Powertrain: 4.2 liter, 8 cyl., 6-AT
1st Place (tie): Lexus LS 430
Combined EPA Fuel Economy: 21
Powertrain: 4.3 liter, 8 cyl., 6-AT
1st Place (tie): Mercedes S430
Combined EPA Fuel Economy: 21
Powertrain: 4.3 liter, 8 cyl., 7-AT
Fuel costs are of little consequence for most people buying large luxury cars. But for those that watch every penny, three cars in this class tied on fuel economy. All three are worthy opponents offering the best of what their manufacturers have to offer, but our pick is the 2006 Lexus LS 430. Though a bit on the dull side, the Lexus will delight its owner in its comfort, simplicity, and quality. Add to that a combined EPA fuel economy rating of 21 mpg, and it’s easy to pass on the beautiful Jaguar and envy-inspiring Benz.
| Runners-Up | Make and Model | Combined MPG | Powertrain |
| 2nd Place | Audi A8 4.2/A8 L 4.2 | 20 | 4.2 liter, 8 cyl., 6-AT |
| BMW 750i/750Li | 20 | 4.8 liter, 8 cyl., 6-AT | |
| Cadillac DTS | 20 | 4.6 liter, 8 cyl., 4-AT | |
| Infiniti M35/M35x | 20 | 3.5 liter, 6 cyl., 5-AT | |
| Infiniti M45 | 20 | 4.5 liter, 8 cyl., 5-AT | |
| Lincoln Town Car | 20 | 4.6 liter, 8 cyl., 4-AT | |
| Mercedes S350 | 20 | 3.7 liter, 8 cyl., 5-AT | |
| 3rd Place | Jaguar XJ Super V8/XJR | 19 | 4.2 liter, 8 cyl., 6-AT |
| Mercedes S430 4Matic | 19 | 4.3 liter, 8 cyl., 5-AT | |
| Mercedes S500 | 19 | 5.8 liter, 8 cyl., 7-AT | |
| 4th Place | Mercedes S500 4Matic | 18 | 5.8 liter, 8 cyl., 5-AT |
| 5th Place | Audi A8 L 6.0 W12 | 17 | 6.0 liter, 12 cyl., 6-AT |
| BMW 760i/760Li | 17 | 6.0 liter, 12 cyl., 6-AT | |
| Mercedes S55 AMG | 17 | 5.4 liter, 8 cyl., 5-AT |