Germany vs USA — 2016 vs 1999
| Cayman GT4 981 | Series 1 Supercharged | |
|---|---|---|
| Horsepower | 385 hp | 450 hp |
| Torque | 310 lb-ft | 380 lb-ft |
| Engine Size | 3,800 cc | 3,990 cc |
| 0-60 mph | 4.2 sec | 3.9 sec |
| Top Speed | 183 mph | 175 mph |
| ¼ Mile | 12.5 sec | 12.3 sec |
| Weight | 2,954 lbs | 2,750 lbs |
| Wheelbase | 2,484 mm | 2,489 mm |
| Length | 4,438 mm | 4,191 mm |
| Units Produced | 2,871 | 249 |
| Original MSRP | $84,600 | $107,982 |
| Value (Excellent) | $140,000 | $250,000 |
| Collectibility | 8/10 | 7/10 |
| Rarity | 6/10 | 9/10 |
Numbers favor the 1999 Shelby Series 1 Supercharged with more power, quicker acceleration, lighter weight. The 2016 Porsche Cayman GT4 981 offers higher top speed, stronger collectibility, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
The rivalry between Germany and USA automotive industries has produced legendary matchups, and the 2016 Porsche Cayman GT4 981 versus 1999 Shelby Series 1 Supercharged is among the most fascinating. These two cars represent the best of their national engineering schools. The 1999 Shelby Series 1 Supercharged holds a clear advantage in raw power with 450 hp compared to 385 hp, a 65-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Porsche Cayman GT4 uses a Flat-6 DOHC 24V displacing 3,800 cc, while the Shelby Series 1 relies on a V8 DOHC Supercharged with 3,990 cc. In the sprint to 60 mph, the 1999 Shelby Series 1 Supercharged edges ahead at 3.9 seconds versus 4.2 seconds. The Shelby Series 1 carries a weight advantage, tipping the scales 204 lbs lighter. Rarity plays a significant role here — with only 249 units built, the 1999 Shelby Series 1 Supercharged is considerably scarcer than the Porsche Cayman GT4's 2,871 examples.