Good morning. We have spoken with the guide and we have corroborated the car that she rented is for 5 people, so it is more than enough for 2 guests. Possibly, due to the reduced mobility of your husband, he was not very comfortable with the content of the itinerary, but it is clear from the description that you go through 3 medieval villages, and it requires a short walk. The guide drove perfectly and there may have been some bends in the route but this is no longer the guide's fault. Anyway we know that you had a great day with the guide. Thank you for your opinion.