USA vs USA — 1963 vs 1959
| Riviera 425 Nailhead | LeSabre Custom 401 Nailhead | |
|---|---|---|
| Horsepower | 340 hp | 325 hp |
| Torque | 465 lb-ft | 410 lb-ft |
| Engine Size | 6,965 cc | 6,571 cc |
| 0-60 mph | 7.7 sec | 9.5 sec |
| Top Speed | 125 mph | 115 mph |
| ¼ Mile | 15.5 sec | 16.5 sec |
| Weight | 4,200 lbs | 4,200 lbs |
| Wheelbase | 3,048 mm | 3,150 mm |
| Length | 5,334 mm | 5,562 mm |
| Units Produced | 40,000 | — |
| Original MSRP | $4,333 | $3,280 |
| Value (Excellent) | $85,000 | $55,000 |
| Collectibility | 8/10 | 6/10 |
| Rarity | 5/10 | 4/10 |
On balance, the 1963 Buick Riviera 425 Nailhead makes a stronger case on paper with quicker acceleration, higher top speed, stronger collectibility. However, the 1959 Buick LeSabre Custom 401 Nailhead counters with its own distinct appeal, and its appeal extends beyond mere numbers. Choose the 1963 Buick Riviera 425 Nailhead for outright capability, or the 1959 Buick LeSabre Custom 401 Nailhead for a more distinctive ownership experience.
Buick has long offered a diverse lineup, and comparing the 1963 Buick Riviera 425 Nailhead with the 1959 Buick LeSabre Custom 401 Nailhead highlights the breadth of the marque's engineering philosophy. On paper, the two are remarkably close in power output, with the 1963 Buick Riviera 425 Nailhead producing 340 hp and the 1959 Buick LeSabre Custom 401 Nailhead delivering 325 hp. Under the hood, the contrast is notable: the Buick Riviera uses a V8 OHV (Buick 425 Nailhead) displacing 6,965 cc, while the Buick LeSabre relies on a V8 OHV (Buick 401 Nailhead) with 6,571 cc. In the sprint to 60 mph, the 1963 Buick Riviera 425 Nailhead edges ahead at 7.7 seconds versus 9.5 seconds. From a collectibility standpoint, the 1963 Buick Riviera 425 Nailhead rates higher among enthusiasts and auction houses.