UK vs USA — 2003 vs 1987
| Continental GT Speed | Allante Convertible | |
|---|---|---|
| Horsepower | 600 hp | 295 hp |
| Torque | 553 lb-ft | 290 lb-ft |
| Engine Size | 5,998 cc | 4,565 cc |
| 0-60 mph | 4.3 sec | 6.4 sec |
| Top Speed | 202 mph | 150 mph |
| ¼ Mile | 12.5 sec | 14.9 sec |
| Weight | — | 3,650 lbs |
| Wheelbase | 2,746 mm | 2,525 mm |
| Length | 4,804 mm | 4,531 mm |
| Units Produced | — | 21,430 |
| Original MSRP | — | $57,183 |
| Value (Excellent) | $120,000 | $38,000 |
| Collectibility | 5/10 | 6/10 |
| Rarity | 3/10 | 6/10 |
It's a closely fought contest. The 2003 Bentley Continental GT Speed 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 Bentley Continental GT Speed versus 1987 Cadillac Allante Convertible is among the most fascinating. These two cars represent the best of their national engineering schools. The 2003 Bentley Continental GT Speed holds a clear advantage in raw power with 600 hp compared to 295 hp, a 305-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Bentley Continental GT uses a W12 Twin-Turbo DOHC 48V displacing 5,998 cc, while the Cadillac Allante relies on a V8 OHV with 4,565 cc. In the sprint to 60 mph, the 2003 Bentley Continental GT Speed edges ahead at 4.3 seconds versus 6.4 seconds. On the collector market, the 2003 Bentley Continental GT Speed commands a significant premium over the 1987 Cadillac Allante Convertible, reflecting differences in prestige and rarity.