Only 6 customers per 15-passenger van plus, of course, a driver and navigator in the captain’s chairs up front. Additional vehicles are staffed with one experienced driver each, plus one additional whenever possible to allow rotating drivers to the maximum extent possible. We remove the rear bench seat in the 15-passenger van to accommodate luggage. This leaves room for only 2 participants sitting in each of the three remaining 3-person bench seat. Therefore, each person is guaranteed a “window” seat at all times!