USA vs USA — 1984 vs 1976
| Grand National GNX | Regal Grand National | |
|---|---|---|
| Horsepower | 276 hp | 245 hp |
| Torque | 360 lb-ft | 355 lb-ft |
| Engine Size | 3,791 cc | 3,791 cc |
| 0-60 mph | 4.7 sec | 5.5 sec |
| Top Speed | 125 mph | 125 mph |
| ¼ Mile | 13.4 sec | 13.9 sec |
| Weight | 3,500 lbs | 3,476 lbs |
| Wheelbase | 2,743 mm | 2,743 mm |
| Length | 5,059 mm | 5,067 mm |
| Units Produced | 547 | 20,193 |
| Original MSRP | $29,290 | $16,608 |
| Value (Excellent) | $300,000 | $75,000 |
| Collectibility | 10/10 | 9/10 |
| Rarity | 9/10 | 7/10 |
The 1984 Buick Grand National GNX holds an edge across most measurable criteria, offering more power, quicker acceleration, greater rarity. That said, the 1976 Buick Regal Grand National brings better value and remains a compelling choice for enthusiasts who value Buick heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Within the Buick stable, the 1984 Buick Grand National GNX and 1976 Buick Regal Grand National represent different approaches to performance and purpose. Both carry the Buick badge, yet each carves out its own distinct identity. The 1984 Buick Grand National GNX holds a clear advantage in raw power with 276 hp compared to 245 hp, a 31-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 Regal relies on a V6 Turbocharged with 3,791 cc. In the sprint to 60 mph, the 1984 Buick Grand National GNX edges ahead at 4.7 seconds versus 5.5 seconds. Rarity plays a significant role here — with only 547 units built, the 1984 Buick Grand National GNX is considerably scarcer than the Buick Regal's 20,193 examples. On the collector market, the 1984 Buick Grand National GNX commands a significant premium over the 1976 Buick Regal Grand National, reflecting differences in prestige and rarity.