Goodyear may have to build different tires for Cup and Nationwide COTs:

Goodyear could be forced to build different tires for NASCAR’s Sprint Cup and Nationwide series in 2010 when the Nationwide car of tomorrow is rolled out, a top official from the sanctioning body says. Currently, Goodyear uses the same tire when both series run on the same weekend, even thought the Cup series is using a new-model car. But NASCAR Vice President of Competition Robin Pemberton said differences in the 2010 models for both series will be substantial, and that could mean a different tire for each. When the Nationwide car is introduced in 2010, it will have less horsepower and more downforce than the Cup version. NASCAR wants to make the cars “significantly different” for drivers, Pemberton said. Some in the Nationwide Series have asked for different tires than the Cup series to help differentiate the series and make sure Cup drivers don’t simply use the Nationwide Series as a test bed.(Scene Daily)(10-14-2008)