USA vs USA — 1970 vs 1959
| GSX Stage 1 455 | LeSabre Custom 401 Nailhead | |
|---|---|---|
| Horsepower | 360 hp | 325 hp |
| Torque | 510 lb-ft | 410 lb-ft |
| Engine Size | 7,456 cc | 6,571 cc |
| 0-60 mph | 5.5 sec | 9.5 sec |
| Top Speed | 130 mph | 115 mph |
| ¼ Mile | 13.4 sec | 16.5 sec |
| Weight | 3,600 lbs | 4,200 lbs |
| Wheelbase | 2,845 mm | 3,150 mm |
| Length | 5,156 mm | 5,562 mm |
| Units Produced | 678 | — |
| Original MSRP | $3,283 | $3,280 |
| Value (Excellent) | $250,000 | $55,000 |
| Collectibility | 9/10 | 6/10 |
| Rarity | 8/10 | 4/10 |
The 1970 Buick GSX Stage 1 455 holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1959 Buick LeSabre Custom 401 Nailhead 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 1970 Buick GSX Stage 1 455 and 1959 Buick LeSabre Custom 401 Nailhead represent different approaches to performance and purpose. Both carry the Buick badge, yet each carves out its own distinct identity. The 1970 Buick GSX Stage 1 455 holds a clear advantage in raw power with 360 hp compared to 325 hp, a 35-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick GSX uses a V8 OHV (Buick 455 Stage 1) displacing 7,456 cc, while the Buick LeSabre relies on a V8 OHV (Buick 401 Nailhead) with 6,571 cc. In the sprint to 60 mph, the 1970 Buick GSX Stage 1 455 edges ahead at 5.5 seconds versus 9.5 seconds. The Buick GSX carries a weight advantage, tipping the scales 600 lbs lighter. On the collector market, the 1970 Buick GSX Stage 1 455 commands a significant premium over the 1959 Buick LeSabre Custom 401 Nailhead, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1970 Buick GSX Stage 1 455 rates higher among enthusiasts and auction houses.