Because of tailgaiting, some new food products were created.
Oh really.  That is interesting.  What new food were created?
Some food products include finger foods that can easily be warmed in crock pots.
I always thought tailgaiting was grilling out.
It is similar to grilling out.  I grill, but someone next to me had a crock pot that plugged into their car.
That would be an awesome way to keep foods warm.  Wouldn't it drain the car battery though?
Perhaps that why they kept the car running at the beginning!  I think I will stick to grilling, which dates ack to the late 1860s and early 1870s.
Sounds easier just to grill.  Plus I want my food hot off the grill anyways.