Most folks know one of the easiest and quickest performance enhancements you can make to your car when you first get it from the dealer is a good set of tires. As Top Gear's Jeremy Clarkson illustrates in the video above, the difference between budget tires and performance tires on their closed course caused an almost two second difference in lap time with a professional driver at the wheel. That's because traction is all about making sure you've got the most rubber possible touching the road at any given moment. Thus, on a dry track, performance tires with a slicker surface allow a greater percentage of the surface of the tire to be in contact with the road, thus providing a higher level of "grip." See for yourself.