USA vs USA — 1968 vs 1968
| Road Runner | Road Runner 426 Hemi | |
|---|---|---|
| Horsepower | 335 hp | 425 hp |
| Torque | 425 lb-ft | 490 lb-ft |
| Engine Size | 6,981 cc | 6,981 cc |
| 0-60 mph | 6.4 sec | 5.3 sec |
| Top Speed | 122 mph | 150 mph |
| ¼ Mile | 14.2 sec | 13.5 sec |
| Weight | 3,500 lbs | — |
| Wheelbase | 2,946 mm | 2,946 mm |
| Length | 5,105 mm | 5,156 mm |
| Units Produced | 84,420 | — |
| Original MSRP | $2,896 | — |
| Value (Excellent) | $175,000 | $250,000 |
| Collectibility | 9/10 | 5/10 |
| Rarity | 5/10 | 8/10 |
It's a closely fought contest. The 1968 Plymouth Road Runner brings stronger collectibility, better value to the table, and the 1968 Plymouth Road Runner 426 Hemi answers with more power, quicker acceleration, higher top speed. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Few model names carry as much weight as the Plymouth Road Runner. The 1968 and 1968 iterations represent different chapters in this storied nameplate's history, each reflecting the priorities and technologies of its era. The 1968 Plymouth Road Runner 426 Hemi 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 Road Runner relies on a V8 OHV Hemi with 6,981 cc. In the sprint to 60 mph, the 1968 Plymouth Road Runner 426 Hemi edges ahead at 5.3 seconds versus 6.4 seconds. From a collectibility standpoint, the 1968 Plymouth Road Runner rates higher among enthusiasts and auction houses.