Beamng drive only gets 3 updates per year. Usually... one in April, one in august, and a final update in December. In my opinion, the game gets a bit stale after a few months. Especially when there are no mods out. Also, usually, each update will get 3 to 4 hotfixes. These are mostly in the first couple weeks. It could be a month or two before another update, which causes small and medium bugs to stick around longer. The beamng devs are usually pretty good about fixing bugs, which is nice, but i think that more updates will make the game feel fresher for longer.