Keep an eye out for a new Porsche this August. That’s when the $106,000 911 GT3 will make its U.S. debut, racing to market with a 415-horsepower, 3.6-liter boxer engine mated to a six-speed manual transmission. A run from 0-62 mph takes 4.3 seconds, and the top speed is 193 mph. Enhancements include electronic traction control, an active suspension system, and 19-inch wheels.