The seat count does not choose the car on its own. If everyone has a large case, a bigger vehicle is the better fit for the same party. 9+1 does not count the driver.
A short connection
Between a hotel and the airport a Vito / V-Class or a Caravelle is enough. A child seat fits both.
A long sit
On a road to Antalya, İzmir or Aphrodisias a Sprinter tires people less. 13+1 is a mid-size team. 16+1 is a large family. If you are unsure, send the people and the bags and we will name the car.