I would prefer the first, because I am sure the track is open on saturdays. I can call them tomorrow to see if they will open on Sunday though.
Other than going to a track my ideas include:
1. go kart racing (during the day) at
Tampa Bay Grand Prix 2. go out to eat and get some drinks
3. Go to a movie. I missed go to see the ricers at theaters for opening day of F&F3, but it would still be fun to go laugh at all the wrong car stuff in the movie.
I really like the go karting idea. I have been to a place like tampa bay gp and it was lots of fun. Not your usual kiddie karts.