| Automatic (S8), 4 cyl, 2.0 L | Rear-Wheel Drive | 26 mpg |
| Automatic (S8), 4 cyl, 2.0 L | All-Wheel Drive | 26 mpg |
| Automatic (S8), 6 cyl, 3.0 L | Rear-Wheel Drive | 24 mpg |
| Automatic (S8), 6 cyl, 3.0 L | All-Wheel Drive | 23 mpg |
| Automatic (S8), 6 cyl, 3.0 L | Rear-Wheel Drive | 22 mpg |
| Automatic (S8), 6 cyl, 3.0 L | All-Wheel Drive | 21 mpg |
| Automatic (S8), 8 cyl, 4.4 L | Rear-Wheel Drive | 20 mpg |
| Automatic (S8), 8 cyl, 4.4 L | All-Wheel Drive | 19 mpg |
| Automatic (S8), 8 cyl, 4.4 L | All-Wheel Drive | 19 mpg |
| Automatic (S8), 8 cyl, 4.4 L | Rear-Wheel Drive | 19 mpg |
| Automatic (S8), 6 cyl, 3.0 L | Rear-Wheel Drive | 30 mpg |
| Automatic (S8), 6 cyl, 3.0 L | All-Wheel Drive | 30 mpg |