Beamng Download Size. I think that 4096×4096 is a good map size. You can check it by starting the download and pausing as soon as it tells you how big the download is.
I know it says it needs 5 gigs of space on my hard drive, but that’s usually not accurate with the actual size of the file that you download. Be careful with that as it’s extremely unstable, you may have to decrease damping and stiffness to minimum.