The 991 3.8 liter flat-6 is smaller than the 997 GT3 RS 4.0 liter mill but it revs higher to 9000 rpm. Can the higher redline and quicker shifting PDK gearbox help it overcome its 25 horsepower (on paper) disadvantage? The 991 GT3 not only has less power but it also is the heavier car by 110 pounds.
Well, the new 991 GT3 is not only faster in a straight line it is significantly quicker around the roadcourse. German publication Auto Bild tested both cars on the Sachsenring and the 991 GT3 crushed the 997 GTR RS 4.0. Here are the laptimes:
991 GT3: 1:32.97
997 GT RS 4.0: 1:34.53 min
Just over 1.5 seconds a lap is a huge improvement. The new car clearly handles better but what about the acceleration figures? The 991 GT3 is the superior performer here as well with an 11.37 second 1/4 mile sprint compared to the 997 GT3 RS 4.0 11.75. Acceleration from 0-200 kph favors the 991 GT3 which accomplishes the task in 11.2 seconds to the 997 GT3 RS 4.0 11.8 seconds.
Engine fire fiasco aside, the 991 GT3 is simply the superior performance car. Some people do not care about raw numbers and want the purest driving experience possible in which case the GT3 RS 4.0 with its manual transmission will likely a do a better job of satisfying that condition. However, with the standard 991 GT3 beating the 997 GT3 RS 4.0 strictly in the performance sense it makes one wonder just how good a 991 GT3 RS will be.
Porsche 911 GT3 RS 4.0
- Weight: 1393 kg
- 0-100 kph: 3.8 s (with Launch Assistant)
- 0-160 kph: 7.9 s
- 0-200 kph: 11.8 s
- Quarter mile: 11.75 s
- Flexibility (80-120 kph) in 5th/6th gear: 5.4 s/7.0 s
- Braking (100-0 kph), warm: 32.1 m (-1.22 G)
- Braking (200-0 kph), warm: 125.6 m (-1.25 G)
Porsche 911 GT3 (991)
- Weight: 1443 kg
- 0-100 kph: 3.4 s (with Launch Control)
- 0-160 kph: 7.3 s
- 0-200 kph: 11.2 s
- Quarter mile: 11.37 s
- Flexibility (80-120 kph) in 5th/6th gear: 5.6 s/7.1 s
- Braking (100-0 kph), warm: 32.2 m (-1,22 G)
- Braking (200-0 kph), warm: 119.1 m (-1,32 G)