Germany vs Germany — 1997 vs 1971
| 911 Turbo S 993 | 917 K | |
|---|---|---|
| Horsepower | 450 hp | 580 hp |
| Torque | 431 lb-ft | 428 lb-ft |
| Engine Size | 3,600 cc | 4,907 cc |
| 0-60 mph | 3.6 sec | 2.3 sec |
| Top Speed | 186 mph | 224 mph |
| ¼ Mile | 12.0 sec | 9.8 sec |
| Weight | 3,307 lbs | 1,764 lbs |
| Wheelbase | 2,272 mm | 2,300 mm |
| Length | 4,245 mm | 4,140 mm |
| Units Produced | 345 | 12 |
| Original MSRP | $150,000 | — |
| Value (Excellent) | $900,000 | $20,000,000 |
| Collectibility | 10/10 | 10/10 |
| Rarity | 9/10 | 10/10 |
Numbers favor the 1971 Porsche 917 K with more power, quicker acceleration, higher top speed. The 1997 Porsche 911 Turbo S 993 offers better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
Porsche has long offered a diverse lineup, and comparing the 1997 Porsche 911 Turbo S 993 with the 1971 Porsche 917 K highlights the breadth of the marque's engineering philosophy. The 1971 Porsche 917 K holds a clear advantage in raw power with 580 hp compared to 450 hp, a 130-horsepower difference that shapes the driving experience. 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 Porsche 917 relies on a Flat-12 DOHC with 4,907 cc. In the sprint to 60 mph, the 1971 Porsche 917 K edges ahead at 2.3 seconds versus 3.6 seconds. The Porsche 917 carries a weight advantage, tipping the scales 1543 lbs lighter. Rarity plays a significant role here — with only 12 units built, the 1971 Porsche 917 K is considerably scarcer than the Porsche 911 Turbo S's 345 examples. On the collector market, the 1971 Porsche 917 K commands a significant premium over the 1997 Porsche 911 Turbo S 993, reflecting differences in prestige and rarity.