UK vs USA — 2003 vs 2006
| DB9 | XLR-V Supercharged Northstar | |
|---|---|---|
| Horsepower | 450 hp | 443 hp |
| Torque | 420 lb-ft | 414 lb-ft |
| Engine Size | 5,935 cc | 4,371 cc |
| 0-60 mph | 4.6 sec | 4.6 sec |
| Top Speed | 186 mph | 155 mph |
| ¼ Mile | 12.8 sec | 13.0 sec |
| Weight | — | 4,022 lbs |
| Wheelbase | 2,740 mm | 2,685 mm |
| Length | 4,710 mm | 4,515 mm |
| Units Produced | — | 2,485 |
| Original MSRP | — | $98,290 |
| Value (Excellent) | $90,000 | $55,000 |
| Collectibility | 5/10 | 6/10 |
| Rarity | 3/10 | 8/10 |
The 2006 Cadillac XLR-V Supercharged Northstar emerges ahead in most objective measures, offering quicker acceleration, stronger collectibility, better value. The 2003 Aston Martin DB9 counters with higher top speed, 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.
Putting the 2003 Aston Martin DB9 against the 2006 Cadillac XLR-V Supercharged Northstar is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus USA. On paper, the two are remarkably close in power output, with the 2003 Aston Martin DB9 producing 450 hp and the 2006 Cadillac XLR-V Supercharged Northstar delivering 443 hp. Under the hood, the contrast is notable: the Aston Martin DB9 uses a V12 DOHC 48V displacing 5,935 cc, while the Cadillac XLR-V relies on a V8 DOHC Supercharged (Northstar LC3) with 4,371 cc. In the sprint to 60 mph, the 2006 Cadillac XLR-V Supercharged Northstar edges ahead at 4.6 seconds versus 4.6 seconds. Whether you prioritize driving dynamics, heritage, or aesthetic appeal, both contenders make a strong case for themselves.