USA vs USA — 1984 vs 1977
| Grand National GNX | Firebird Trans Am Bandit Edition 6.6 | |
|---|---|---|
| Horsepower | 276 hp | 200 hp |
| Torque | 360 lb-ft | 340 lb-ft |
| Engine Size | 3,791 cc | 6,555 cc |
| 0-60 mph | 4.7 sec | 8.4 sec |
| Top Speed | 125 mph | 123 mph |
| ¼ Mile | 13.4 sec | 15.9 sec |
| Weight | 3,500 lbs | 3,578 lbs |
| Wheelbase | 2,743 mm | 2,743 mm |
| Length | 5,059 mm | 4,953 mm |
| Units Produced | 547 | 68,745 |
| Original MSRP | $29,290 | $5,456 |
| Value (Excellent) | $300,000 | $95,000 |
| Collectibility | 10/10 | 8/10 |
| Rarity | 9/10 | 4/10 |
On balance, the 1984 Buick Grand National GNX makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1977 Pontiac Firebird Trans Am Bandit Edition 6.6 counters with better value, and its appeal extends beyond mere numbers. Choose the 1984 Buick Grand National GNX for outright capability, or the 1977 Pontiac Firebird Trans Am Bandit Edition 6.6 for a more distinctive ownership experience.
In the world of Muscle Car cars, few comparisons generate as much discussion as the 1984 Buick Grand National GNX versus the 1977 Pontiac Firebird Trans Am Bandit Edition 6.6. Both hail from Malaise era and represent the pinnacle of their respective manufacturers' ambitions. The 1984 Buick Grand National GNX holds a clear advantage in raw power with 276 hp compared to 200 hp, a 76-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Grand National uses a V6 OHV Turbocharged (Buick 3.8L) displacing 3,791 cc, while the Pontiac Firebird Trans Am relies on a V8 OHV with 6,555 cc. In the sprint to 60 mph, the 1984 Buick Grand National GNX edges ahead at 4.7 seconds versus 8.4 seconds. Rarity plays a significant role here — with only 547 units built, the 1984 Buick Grand National GNX is considerably scarcer than the Pontiac Firebird Trans Am's 68,745 examples. On the collector market, the 1984 Buick Grand National GNX commands a significant premium over the 1977 Pontiac Firebird Trans Am Bandit Edition 6.6, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1984 Buick Grand National GNX rates higher among enthusiasts and auction houses.