With Kathmandu airport transfers you can avail three kinds of vehicles which are a car, large sedan ad a minivan. You can select the vehicle as per your traveling party. While the car has a capacity of 2 people with two luggage a large sedan can accommodate up to 4 people with 4 items of luggage.
If the traveling party is big in number in the range of 5 to 10 then you can go for a minivan which also had a capacity of 9 items of luggage. The car could be Toyota Corolla or Similar, the large sedan will be a Mahindra Scorpio or Similar and the minivan would be Toyota Hiace or Similar. Pick the vehicle as per your convenience.