NASCAR to increase age limit?

A reliable inside source tells rowdy.com that NASCAR is seriously considering raising the age limit for drivers in the Sprint Cup Series from the current 18 years of age to 21. Should the change happen, and a decision has not yet been made according to the source, the driver who comes most quickly to the mind of Rowdy listeners is phenom Joey Logano. Logano, currently with Joe Gibbs Racing, turns 18 on May 24th of this year (he's scheduled to make his Nationwide Series debut at Dover shortly afterward), and under the current rules he would be eligible for Cup duty in 2009. Presumably any change would affect the Sprint Cup series only. Rowdy.com