If you want to spend 10-16 for a truck to pull a trailer then my advice is to get a used Chevy 1500. It's no diesel but it tow's fine.

I paid $10,300 for my 2006 1500 4wd. A newer diesel would of been alot more. Take the money you save and spend it on your track car.

Unless you are getting a enclosed trailer a gas truck will work fine. Also, have you been to the track before?