USA vs USA — 1956 vs 1957
| Fury Sport Fury 440 | Bonneville 421 SD | |
|---|---|---|
| Horsepower | 350 hp | 405 hp |
| Torque | 470 lb-ft | 425 lb-ft |
| Engine Size | 7,210 cc | 6,899 cc |
| 0-60 mph | 7.2 sec | 5.4 sec |
| Top Speed | 125 mph | 140 mph |
| ¼ Mile | 15.0 sec | 13.9 sec |
| Weight | 3,900 lbs | 3,900 lbs |
| Wheelbase | 3,023 mm | 3,048 mm |
| Length | 5,410 mm | 5,486 mm |
| Original MSRP | $2,868 | $3,349 |
| Value (Excellent) | $40,000 | $150,000 |
| Collectibility | 6/10 | 8/10 |
| Rarity | 5/10 | 9/10 |
Numbers favor the 1957 Pontiac Bonneville 421 SD with more power, quicker acceleration, higher top speed. The 1956 Plymouth Fury Sport Fury 440 offers better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
In the world of Full-Size Performance Car cars, few comparisons generate as much discussion as the 1956 Plymouth Fury Sport Fury 440 versus the 1957 Pontiac Bonneville 421 SD. Both hail from Post-war and represent the pinnacle of their respective manufacturers' ambitions. The 1957 Pontiac Bonneville 421 SD holds a clear advantage in raw power with 405 hp compared to 350 hp, a 55-horsepower difference that shapes the driving experience. In the sprint to 60 mph, the 1957 Pontiac Bonneville 421 SD edges ahead at 5.4 seconds versus 7.2 seconds. On the collector market, the 1957 Pontiac Bonneville 421 SD commands a significant premium over the 1956 Plymouth Fury Sport Fury 440, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1957 Pontiac Bonneville 421 SD rates higher among enthusiasts and auction houses.