OK, got it. If they are packing it in the original box, as others have noted it will be pretty easy to reassemble. The box will have to be lifted up into your vehicle, but then you can just push it in pretty easily. It’ll sit on a lengthways edge, if you know what I mean.

I recently moved across the country, and brought three bikes, all packed just like this. They were not in their original boxes, but were in boxes I scavenged from a local shop. All survive the trip nicely.