USA vs USA — 1968 vs 1951
| Road Runner | Belvedere 426 Max Wedge | |
|---|---|---|
| Horsepower | 335 hp | 425 hp |
| Torque | 425 lb-ft | 480 lb-ft |
| Engine Size | 6,981 cc | 6,981 cc |
| 0-60 mph | 6.4 sec | 5.5 sec |
| Top Speed | 122 mph | 130 mph |
| ¼ Mile | 14.2 sec | 13.2 sec |
| Weight | 3,500 lbs | 3,300 lbs |
| Wheelbase | 2,946 mm | 2,946 mm |
| Length | 5,105 mm | 5,067 mm |
| Units Produced | 84,420 | — |
| Original MSRP | $2,896 | $3,500 |
| Value (Excellent) | $175,000 | $250,000 |
| Collectibility | 9/10 | 9/10 |
| Rarity | 5/10 | 9/10 |
The 1951 Plymouth Belvedere 426 Max Wedge emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 1968 Plymouth Road Runner counters with better value, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
The 1968 Plymouth Road Runner and 1951 Plymouth Belvedere 426 Max Wedge share a manufacturer in Plymouth, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Plymouth brand. The 1951 Plymouth Belvedere 426 Max Wedge holds a clear advantage in raw power with 425 hp compared to 335 hp, a 90-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Plymouth Road Runner uses a V8 OHV (RB big-block) displacing 6,981 cc, while the Plymouth Belvedere relies on a V8 OHV with 6,981 cc. In the sprint to 60 mph, the 1951 Plymouth Belvedere 426 Max Wedge edges ahead at 5.5 seconds versus 6.4 seconds. Whether you prioritize driving dynamics, heritage, or aesthetic appeal, both contenders make a strong case for themselves.