All Porsche 911s are serious sports cars, but some are more serious than others. The GT3 has a race-bred engine with seven oil pumps, a gearbox with its own cooling system, and grippy Michelin Pilot Sport Cup tires. With 70 percent of GT3s seeing track use, it is the top jock in the 911 family, and the 2010 model is more serious than ever.
The GT3 lunges through the gears until fifth, at 145 mph, at which point the thrust moderates. Traffic precluded exceeding 175 mph on the autobahn, but the GT3 feels planted and stable at this pace, even on a hilly and curving roadway.
On twisty country lanes, the GT3 is simply superb. Its steering is as good as it gets, with perfect weighting, a natural buildup of forces during cornering, and great accuracy. Trying to slide a car with such high limits (the last GT3 we tested scored 1.05 g) on public roads is foolhardy unless your name is Walter Röhrl, but the car is immensely satisfying to fling into corners at thrilling speeds, knowing that you can rocket out even faster.
Source: Car and Driver