When focusing on tires performance can mean many different things. Enthusiasts measure tire performance by traction rating, treadwear and ratio of summer/winter capabilities. But everyday passenger car tires are equally as important and for them enviable qualities include longevity, ride, and how they react under durress. The latter of which is of intense importance because these types of tires carry our families around town and miles from home on road trips. This video from Discount Tire shows an innovative tire, the Bridgestone DriveGuard, that attains near run-flat capability with out all the complexity and cost of the real think. These tires are designed to run at 50 mph for 50 miles at zero pressure.