December 12 2012 Charlotte Motor Speedway NASCAR Generation Six Car Wednesday Afternoon Test Speeds Ryan Rantz Test Speeds 2012 off-season testing, Charlotte Motor Speedway NASCAR Generation Six Car Wednesday Afternoon Test Speeds, Charlotte test speeds, Gen6, Generation 6, Generation Six, Generation Six Car Testing, Lowes Test Speeds, NASCAR, speeds, Test Speeds, Testing, Who tested at Charlotte Speed Rank Driver Laps Run Best Speed 1 Kasey Kahne 9 193.112 More