It's just before noon on a Thursday morning as I saunter down pit row at Daytona International Speedway and slide into the supportive sport bucket seat of a 2008 Porsche 911 GT2. I fiddle a bit with the seat and steering column adjustments until I'm comfortable, then double-check that my seatbelt is secured. It's hot and humid, but that's not why I'm perspiring - this cold sweat is a sign that my body's survival instincts are on edge, and for good reason. Fortunately, I've received personalized instruction from a quartet of legendary drivers and a complete technical briefing courtesy of Porsche Motorsports engineers, and there's little left to be learned without actually driving the car. I depress the heavily-weighted clutch pedal, muscle the short-throw shifter into 1st gear, bring the revs up, and...
