We've had "jeeps" several times and the luggage was as follows 5 largish suitcases 2 small cases at least 4 or 5 pieces of hand baggage it was a squueeze with 4 adults and a large child but it did all fit!

The squeezing on the way to and from the airport was more than made up for by the comfort of the jeep - which was great! We've had a Mitsubishi montero sport, Jeep, Blazer and a Ford that I can't remember the model name of but they were all fab!