The multiple routes are for "break out groups".. ideally you run them all during the week. We do this due to logistics of keeping 65 cars together.. and overwhelming restaurants with 100 plus people walking in for lunch. About 15 cars or so per "group" keeps things more manageable. The evenings are "on your own" diner.. usually you meet people that "click" with you and end up doing dinners in smaller groups.. or we've ran off to Sonic by ourselves before..
We spend evenings gathered up getting to know each other better and discuss the days fun and adventures.