I took my brother-in-law and nephew to the Charlotte Motor Speedway and they had the ride of their life with Richard Petty Driving Experience's Ride A-Long. The smiles on their faces said it all after they got out of the racecar going over 160MPH for 3 laps.
There wasn't anyone behind us in line, so the crew and the driver popped the hood and showed them what the engine of a real NASCAR looked like and answered all of their questions.
When my brother-in-law and nephew left Charlotte to head back home, they mentioned this was the favorite part of their visit.