In the interior, you can distinguish between 2 versions, the basic 5-seater and the better 7-seater. In Germany, you could choose such a surcharge only for higher equipment, here it was available for all. There are many differences between the versions, the 7-seater also has vents, stronger air conditioning or seat belts, which you can't get in the 5-seater. Be careful when buying a ticket. If the seller convinces you that it is enough just to buy seats, do not believe him.