USA vs USA — 1970 vs 1991
| GSX Stage 1 | Roadmaster Estate Wagon | |
|---|---|---|
| Horsepower | 360 hp | 180 hp |
| Torque | 510 lb-ft | — |
| Engine Size | 7,456 cc | 5,733 cc |
| 0-60 mph | 5.5 sec | — |
| Top Speed | 125 mph | — |
| ¼ Mile | 13.4 sec | — |
| Wheelbase | 2,845 mm | 2,944 mm |
| Length | 5,156 mm | 5,528 mm |
| Units Produced | 678 | — |
| Value (Excellent) | $200,000 | $30,000 |
| Collectibility | 5/10 | 5/10 |
| Rarity | 8/10 | 10/10 |
It's a closely fought contest. The 1970 Buick GSX Stage 1 brings more power to the table, and the 1991 Buick Roadmaster Estate Wagon answers with better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Buick has long offered a diverse lineup, and comparing the 1970 Buick GSX Stage 1 with the 1991 Buick Roadmaster Estate Wagon highlights the breadth of the marque's engineering philosophy. The 1970 Buick GSX Stage 1 holds a clear advantage in raw power with 360 hp compared to 180 hp, a 180-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick GSX uses a V8 OHV 16V displacing 7,456 cc, while the Buick Roadmaster relies on a V8 with 5,733 cc. On the collector market, the 1970 Buick GSX Stage 1 commands a significant premium over the 1991 Buick Roadmaster Estate Wagon, reflecting differences in prestige and rarity.