1978 Mercury Grand Marquis Statistics
Warning, these statistics are based on a biased sample, so should be treated with caution
| Number of reviews | 2 |
| Would buy another Mercury? | 100% |
| Would not buy another Mercury? | 0% |
| Average Performance marks | 9.0 |
| Average Reliability marks | 8.5 |
| Average Comfort marks | 9.5 |
| Average Dealer Service marks | 0.0 |
| Average Running Costs (higher is cheaper) | 6.0 |