USA vs USA — 1984 vs 1988
| Grand National GNX | Reatta Coupe | |
|---|---|---|
| Horsepower | 276 hp | 165 hp |
| Torque | 360 lb-ft | 210 lb-ft |
| Engine Size | 3,791 cc | 3,791 cc |
| 0-60 mph | 4.7 sec | 9.5 sec |
| Top Speed | 125 mph | 123 mph |
| ¼ Mile | 13.4 sec | 17.2 sec |
| Weight | 3,500 lbs | 3,400 lbs |
| Wheelbase | 2,743 mm | 2,526 mm |
| Length | 5,059 mm | 4,684 mm |
| Units Produced | 547 | 21,751 |
| Original MSRP | $29,290 | $26,700 |
| Value (Excellent) | $300,000 | $25,000 |
| Collectibility | 10/10 | 5/10 |
| Rarity | 9/10 | 6/10 |
The 1984 Buick Grand National GNX holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1988 Buick Reatta Coupe 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 1988 Buick Reatta Coupe 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 165 hp, a 111-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 Reatta relies on a V6 OHV with 3,791 cc. In the sprint to 60 mph, the 1984 Buick Grand National GNX edges ahead at 4.7 seconds versus 9.5 seconds. Rarity plays a significant role here — with only 547 units built, the 1984 Buick Grand National GNX is considerably scarcer than the Buick Reatta's 21,751 examples. On the collector market, the 1984 Buick Grand National GNX commands a significant premium over the 1988 Buick Reatta Coupe, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1984 Buick Grand National GNX rates higher among enthusiasts and auction houses.