USA vs USA — 1968 vs 1966
| Road Runner 426 Hemi | Shelby GT350H Hertz Rent-A-Racer | |
|---|---|---|
| Horsepower | 425 hp | 306 hp |
| Torque | 490 lb-ft | 329 lb-ft |
| Engine Size | 6,981 cc | 4,736 cc |
| 0-60 mph | 5.3 sec | 6.6 sec |
| Top Speed | 150 mph | 130 mph |
| ¼ Mile | 13.5 sec | 14.9 sec |
| Weight | — | 2,850 lbs |
| Wheelbase | 2,946 mm | 2,743 mm |
| Length | 5,156 mm | 4,613 mm |
| Units Produced | — | 1,001 |
| Original MSRP | — | $4,547 |
| Value (Excellent) | $250,000 | $450,000 |
| Collectibility | 5/10 | 10/10 |
| Rarity | 8/10 | 9/10 |
The 1968 Plymouth Road Runner 426 Hemi holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1966 Ford Shelby GT350H Hertz Rent-A-Racer brings stronger collectibility and remains a compelling choice for enthusiasts who value Ford heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Among Muscle Car enthusiasts, the matchup between the 1968 Plymouth Road Runner 426 Hemi and 1966 Ford Shelby GT350H Hertz Rent-A-Racer is one for the ages. These Muscle era machines competed directly for buyers' attention and continue to vie for collectors' affections today. The 1968 Plymouth Road Runner 426 Hemi holds a clear advantage in raw power with 425 hp compared to 306 hp, a 119-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Plymouth Road Runner uses a V8 OHV Hemi displacing 6,981 cc, while the Ford Shelby GT350H relies on a V8 OHV with 4,736 cc. In the sprint to 60 mph, the 1968 Plymouth Road Runner 426 Hemi edges ahead at 5.3 seconds versus 6.6 seconds. From a collectibility standpoint, the 1966 Ford Shelby GT350H Hertz Rent-A-Racer rates higher among enthusiasts and auction houses.