911 GT3 RSR

If at first you don't succeed ... make your race car better. That's the principle behind yesterday's launch of the Porsche 911 GT3 R Hybrid 2.0. It's the second iteration of Porsche's ground-breaking 911 endurance racer fitted with a Kinetic Energy Recovery System, or KERS. The first version of the 911 GT3 R Hybrid, revealed exactly a year ago, led the 24 Hours of Nurburgring in its maiden competition run, until a mechanical failure forced it to retire just a few hours before the checkered flag. That failure, Porsche hastens to point out, was in the combustion engine, not any of the hybrid...