Lovely people here, I came across a youtube channel where the uploader documented his build of the buggy featured in PubG. Extremely impressive. If you look up on youtube GoryashchiyeKlyuchi buggy from PubG that should show the first part. There are about 12 parts. It's a pretty badass build and the machine is quite straight forward to operate. It's only comes in manual with speed limit of 70mph max.
There's a mod called the Trackfab Autobello Buggy or something like that, I'll link if I find it. It's got the Piccolina engine in it and it looks a LOT like the PUBG buggy. It's got no roof seat but other than that it's spot-on. EDIT: Found it! https://www.beamng.com/resources/trackfab-autobello-buggy.9678/ @TrackpadUser makes some pretty amazing mods, check it out.