We have gone on three trips with Autobahn Adventures. We have been very happy with them. Autobahn Adventures allows us to have freedom to go off on our own too. It's set up so you have some free days for any excursions you wish to take on the side. The GPS is pre-programmed with the next hotel destination, but you can choose to caravan with the group, or take an alternate route. They only really want to keep the group together for the Porsche plant and museum tours. Since our first adventure, we've gone two more times and we're signed on for next year too!