Jimmie Johnson's dehydration incident remains somewhat a mystery

   A post-race analysis by Hendrick Motorsports on Jimmie Johnson's No. 48 Chevrolet used in Saturday night's Sprint Cup Series race at Richmond, Va., found all of the car's components were functioning properly, a team spokesperson confirmed on Tuesday morning.

   The spokesperson also said she had exchanged text messages with Johnson on Monday evening and he said he was feeling much better. 

   Johnson is scheduled to take part in NASCAR's "Chase Across North America" tour and planning to visit New York City as part of the media tour.

   After exiting his No. 48 Chevrolet on pit road after his eighth-place finish Saturday night, Johnson said he began to cramp and slumped to the ground. He stood back up and began to get dizzy, so he laid back on the ground near his car.

   Medics took Johnson to the infield care center where he was released about an hour-and-a-half later after receiving five liters of intravenous fluids.