USA vs USA — 1967 vs 1957
| Crown Convertible | Crown Convertible | |
|---|---|---|
| Horsepower | 350 hp | 325 hp |
| Torque | 470 lb-ft | 410 lb-ft |
| Engine Size | 7,210 cc | 6,424 cc |
| 0-60 mph | 9.5 sec | 10.0 sec |
| Top Speed | 115 mph | 120 mph |
| ¼ Mile | 16.8 sec | 17.0 sec |
| Weight | — | 5,000 lbs |
| Wheelbase | 3,264 mm | 3,302 mm |
| Length | 5,740 mm | 5,715 mm |
| Units Produced | 577 | 1,167 |
| Original MSRP | — | $5,598 |
| Value (Excellent) | $145,000 | $250,000 |
| Collectibility | 5/10 | 9/10 |
| Rarity | 9/10 | 9/10 |
It's a closely fought contest. The 1967 Imperial Crown Convertible brings quicker acceleration, greater rarity to the table, and the 1957 Imperial Crown Convertible answers with higher top speed, stronger collectibility. 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 Imperial Crown. The 1967 and 1957 iterations represent different chapters in this storied nameplate's history, each reflecting the priorities and technologies of its era. The 1967 Imperial Crown Convertible holds a clear advantage in raw power with 350 hp compared to 325 hp, a 25-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Imperial Crown uses a V8 OHV displacing 7,210 cc, while the Imperial Crown relies on a V8 OHV Hemi with 6,424 cc. In the sprint to 60 mph, the 1967 Imperial Crown Convertible edges ahead at 9.5 seconds versus 10.0 seconds. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference. From a collectibility standpoint, the 1957 Imperial Crown Convertible rates higher among enthusiasts and auction houses.