1989 GMC Sierra Statistics
Warning, these statistics are based on a biased sample, so should be treated with caution
| Number of reviews | 8 |
| Would buy another GMC? | 75% |
| Would not buy another GMC? | 0% |
| Average Performance marks | 9.1 |
| Average Reliability marks | 9.6 |
| Average Comfort marks | 8.3 |
| Average Dealer Service marks | 9.0 |
| Average Running Costs (higher is cheaper) | 5.8 |