Will an Uber X handle two passengers and 3 suitcases? Yes. Since they have to have 4 extra seatbelts beside their own (so 5 and a trunk, so 6 spaces), I'm sure that with the driver+2 people= 3 spaces +3 suitcases = 6 spaces. And if your suitcases are abnormally large, stop being cheap and order an UberXL.