USA vs USA — 1984 vs 1971
| Grand National GNX | Riviera GS (Boattail) | |
|---|---|---|
| Horsepower | 276 hp | 330 hp |
| Torque | 360 lb-ft | 450 lb-ft |
| Engine Size | 3,791 cc | 7,456 cc |
| 0-60 mph | 4.7 sec | 7.5 sec |
| Top Speed | 125 mph | 120 mph |
| ¼ Mile | 13.4 sec | 15.5 sec |
| Weight | 3,500 lbs | — |
| Wheelbase | 2,743 mm | 3,048 mm |
| Length | 5,059 mm | 5,523 mm |
| Units Produced | 547 | — |
| Original MSRP | $29,290 | — |
| Value (Excellent) | $300,000 | $55,000 |
| Collectibility | 10/10 | 5/10 |
| Rarity | 9/10 | 5/10 |
This matchup is remarkably close. The 1984 Buick Grand National GNX offers quicker acceleration, higher top speed, stronger collectibility, while the 1971 Buick Riviera GS (Boattail) counters with more power, better value. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.
Within the Buick stable, the 1984 Buick Grand National GNX and 1971 Buick Riviera GS (Boattail) represent different approaches to performance and purpose. Both carry the Buick badge, yet each carves out its own distinct identity. The 1971 Buick Riviera GS (Boattail) holds a clear advantage in raw power with 330 hp compared to 276 hp, a 54-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 Buick Riviera relies on a V8 OHV 16V with 7,456 cc. In the sprint to 60 mph, the 1984 Buick Grand National GNX edges ahead at 4.7 seconds versus 7.5 seconds. On the collector market, the 1984 Buick Grand National GNX commands a significant premium over the 1971 Buick Riviera GS (Boattail), reflecting differences in prestige and rarity. From a collectibility standpoint, the 1984 Buick Grand National GNX rates higher among enthusiasts and auction houses.