Tested: DriveGuard. A Better Riding Run-Flat for Winter? | Tire Rack

http://www.tirerack.com/a.jsp?a=HP5&url=/tires/tests/testDisplay.jsp&ttid=186 Designed to be a better riding run-flat, Bridgestone's DriveGuard aims to be the simple mainstream solution, providing appropriate road manners and extended mobility capabilities for any passenger car with a tire pressure monitoring system. But how does it perform when it snows? We went to Sweden to test this tire where winter reigns supreme.