UK vs USA — 2003 vs 1987
| Vanquish S | Allante Convertible | |
|---|---|---|
| Horsepower | 520 hp | 295 hp |
| Torque | 425 lb-ft | 290 lb-ft |
| Engine Size | 5,935 cc | 4,565 cc |
| 0-60 mph | 4.8 sec | 6.4 sec |
| Top Speed | 200 mph | 150 mph |
| ¼ Mile | 12.8 sec | 14.9 sec |
| Weight | — | 3,650 lbs |
| Wheelbase | 2,690 mm | 2,525 mm |
| Length | 4,665 mm | 4,531 mm |
| Units Produced | — | 21,430 |
| Original MSRP | — | $57,183 |
| Value (Excellent) | $150,000 | $38,000 |
| Collectibility | 5/10 | 6/10 |
| Rarity | 7/10 | 6/10 |
It's a closely fought contest. The 2003 Aston Martin Vanquish S brings more power, quicker acceleration, higher top speed to the table, and the 1987 Cadillac Allante Convertible answers with stronger collectibility, better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
The rivalry between UK and USA automotive industries has produced legendary matchups, and the 2003 Aston Martin Vanquish S versus 1987 Cadillac Allante Convertible is among the most fascinating. These two cars represent the best of their national engineering schools. The 2003 Aston Martin Vanquish S holds a clear advantage in raw power with 520 hp compared to 295 hp, a 225-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Aston Martin Vanquish S uses a V12 DOHC 48V displacing 5,935 cc, while the Cadillac Allante relies on a V8 OHV with 4,565 cc. In the sprint to 60 mph, the 2003 Aston Martin Vanquish S edges ahead at 4.8 seconds versus 6.4 seconds. On the collector market, the 2003 Aston Martin Vanquish S commands a significant premium over the 1987 Cadillac Allante Convertible, reflecting differences in prestige and rarity.