I don't see why either would be incorrect, although room is used more often when speaking of being able to accomodate a person, and space is used more often when spekaing of accomodating a package or piece of luggage or some other item to transport, usually in the trunk (or boot, for the British). , but I don't think using space would be incorrect. examples: We had to tell John that we didn't have room for him in the car when my little brother decided he wanted to go to the game with us.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
sam1947although room is used more often when speaking of being able to accomodate a person, and space is used more often when spekaing of accomodating a package or piece of luggageI get your point and I apply it on different sentences.