Marc,

I haven't rented any "wagons" because I generally don't need a large car. Have you thought of calling the car rental company to discuss your needs and to get their suggestions? They may be able to give measurements, etc. Also go to my "Car Rental" page. Click on the Kemwel link. Key in country, city and click on "wagons & mini vans" to get quotes. Once the page of cars comes up click on the Zoom button under each car to view how many passengers and luggage each car will hold. Otherwise you can do an Internet search for the specific model you are interested in to get the specs.

Michele