Germany vs USA — 1997 vs 1999
| 911 Turbo S 993 | Series 1 Supercharged | |
|---|---|---|
| Horsepower | 450 hp | 450 hp |
| Torque | 431 lb-ft | 380 lb-ft |
| Engine Size | 3,600 cc | 3,990 cc |
| 0-60 mph | 3.6 sec | 3.9 sec |
| Top Speed | 186 mph | 175 mph |
| ¼ Mile | 12.0 sec | 12.3 sec |
| Weight | 3,307 lbs | 2,750 lbs |
| Wheelbase | 2,272 mm | 2,489 mm |
| Length | 4,245 mm | 4,191 mm |
| Units Produced | 345 | 249 |
| Original MSRP | $150,000 | $107,982 |
| Value (Excellent) | $900,000 | $250,000 |
| Collectibility | 10/10 | 7/10 |
| Rarity | 9/10 | 9/10 |
Two outstanding machines, each with compelling strengths. The 1997 Porsche 911 Turbo S 993 excels in quicker acceleration, higher top speed, stronger collectibility, while the 1999 Shelby Series 1 Supercharged stands out for lighter weight, better value. The best advice? Drive both if you can, then follow your instincts.
Putting the 1997 Porsche 911 Turbo S 993 against the 1999 Shelby Series 1 Supercharged is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Germany versus USA. On paper, the two are remarkably close in power output, with the 1997 Porsche 911 Turbo S 993 producing 450 hp and the 1999 Shelby Series 1 Supercharged delivering 450 hp. Under the hood, the contrast is notable: the Porsche 911 Turbo S uses a Flat-6 SOHC Twin-Turbo displacing 3,600 cc, while the Shelby Series 1 relies on a V8 DOHC Supercharged with 3,990 cc. In the sprint to 60 mph, the 1997 Porsche 911 Turbo S 993 edges ahead at 3.6 seconds versus 3.9 seconds. The Shelby Series 1 carries a weight advantage, tipping the scales 557 lbs lighter. On the collector market, the 1997 Porsche 911 Turbo S 993 commands a significant premium over the 1999 Shelby Series 1 Supercharged, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1997 Porsche 911 Turbo S 993 rates higher among enthusiasts and auction houses.