CONCORD, N.C. -- The Sprint Cup garage was shutting down as a cold, steady rain pelted Charlotte Motor Speedway. There were no crew chiefs or engineers probing their drivers for that last bit of information before losing them for the Christmas holidays. Most were long gone. But there were reigning champion Brad Keselowski and new Penske Racing teammate Joey Logano by themselves, debriefing about what they liked and didn't like about the new car during their last run, thinking outside the box for ways to pick up more speed.
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