[Huz-Z]

how about this:

1. Dad was an accomplished driver in his younger years.
2. Son is also a major car guy.
3. Dad can't race anymore, perhaps due to a medical condition, like multiple sclerosis. I don't see an accident suggested.
4. Son gets his license and for his first drive, takes Dad back to the track - so they can share the experience together.
5. The Dad is NOT proud of his son? Did you miss the big smile as he looks over to the young man?

My two cents worth.