Caffeine and Octane is held every first Sunday of the month at Town Center at Cobb in Kennesaw Georgia 9:00 am - 12:00 pm. C&O is always held 'rain or shine'. C&O is a family-friendly event and free to attend as a spectator. C&O is an all-makes, all models show. It is free to exhibit a privately-owned vehicle and all spaces are first come first serve. Arrive early for the best spots!