Any New Jersey locals ever been to the Motor Sports Park? http://www.njmp.com/
I'm most likely going to do the go-karts with some friends, but some of the regular track packages look awesome (full day track instruction). I went go-karting with some friends recently at another facility and we had an absolute blast. It was indoors and slower than the F1 karts, but I could not believe how much of a rush it was. I never knew an 8 minute race could be such a workout. When our time was up, everyone wanted to keep going.
If you have a bachelor party, seriously consider a good gokart facility to start the day.
Looks like an amazing time: