Found totally other lap times for GT3:
http://teamspeed.com/forums/991-997-996/83954-2015-porsche-991-turbo-s-facelift-tested-nuerburgring-11.html
Porsche 911 GT3 vs Porsche Cayman GT4
| Category | Porsche 911 GT3 | Porsche Cayman GT4 |
|---|---|---|
| Engine layout | 3.6 l B6 | 3.8 l B6 |
| Max power (ps / bhp) | 415 / 409 | 385 / 380 |
| Max torque (Nm / lb-ft) | 405 / 299 | 419 / 309 |
| Curb weight (kg / lb) | 1395 / 3075 | 1340 / 2954 |
| Power / tonne (ps / bhp) | 297 / 293 | 287 / 283 |
Lap Times 9
Performance
| Category | Porsche 911 GT3 | Porsche Cayman GT4 |
|---|---|---|
| Top speed | 316 kph (196 mph) | 295 kph (183 mph) |
| 0 - 100 kph | 4.2 s | 4.3 s |
| 0 - 200 kph | 13.6 s | 13.7 s |
| 0 - 100 mph | 8.9 s | 9.0 s |
| Est. 1/8 mile | 8.5 s @ 98.8 mph | 8.8 s @ 97.6 mph |
| 1/4 mile | 12.0 s | 12.3 s @ 115.2 mph |
| Est. 100 - 200 kph | 9.4 s | 9.9 s |
| Est. max acceleration | 0.73 g (7 m/s²) | 0.66 g (6 m/s²) |
| 70 mph - 0 | 44 m (145 ft) | 46 m (151 ft) |
| Lateral acceleration | 1.02 g (10 m/s²) | 1.01 g (10 m/s²) |
Summary
| Category | Porsche 911 GT3 | Porsche Cayman GT4 |
|---|---|---|
| Track Performance | 874 | 859 |
| Straight line speed | 900 | 923 |
| Total | 1774 | 1783 |
Verdict
There is no clear winner in this comparison.
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More acceleration data at dragrace.me
Acceleration graph
