USA vs UK — 1965 vs 1972
| DeVille Convertible | XJ12 Series III | |
|---|---|---|
| Horsepower | 340 hp | 295 hp |
| Torque | 450 lb-ft | 318 lb-ft |
| Engine Size | 7,030 cc | 5,343 cc |
| 0-60 mph | 9.5 sec | 7.1 sec |
| Top Speed | 115 mph | 146 mph |
| ¼ Mile | 17.0 sec | 15.2 sec |
| Weight | — | 4,200 lbs |
| Wheelbase | 3,302 mm | 2,865 mm |
| Length | 5,643 mm | 5,024 mm |
| Units Produced | 19,200 | 10,500 |
| Original MSRP | — | $38,000 |
| Value (Excellent) | $80,000 | $55,000 |
| Collectibility | 5/10 | 7/10 |
| Rarity | 5/10 | 5/10 |
The 1972 Jaguar XJ12 Series III emerges ahead in most objective measures, offering quicker acceleration, higher top speed, stronger collectibility. The 1965 Cadillac DeVille Convertible counters with more power, 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.
When USA engineering meets UK craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1965 Cadillac DeVille Convertible and 1972 Jaguar XJ12 Series III embody their respective national automotive traditions while competing in the same arena. The 1965 Cadillac DeVille Convertible holds a clear advantage in raw power with 340 hp compared to 295 hp, a 45-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Cadillac DeVille uses a V8 OHV displacing 7,030 cc, while the Jaguar XJ12 relies on a V12 SOHC with 5,343 cc. In the sprint to 60 mph, the 1972 Jaguar XJ12 Series III edges ahead at 7.1 seconds versus 9.5 seconds. From a collectibility standpoint, the 1972 Jaguar XJ12 Series III rates higher among enthusiasts and auction houses.