RFK Racing, driver Brad Keselowski, and BuildSumarines.com are teaming up to salute America’s veterans, in support of Keselowski’s Checkered Flag Foundation, with a special paint scheme for the Darlington race this September. Keselowski’s No. 6 Ford Mustang will feature military heroes’ names as submitted by race fans earlier in the season. Keselowski’s fans can now add the official Lionel Racing die-cast of the No. 6 BuildSubmarines.com Tribute to Veterans Ford to their NASCAR® collections.