I dont know what you guys know of the current physics issues but aside from the phasing through objects occasionally i ran into a few others, im going to list them here.
Accelerating at a specific incline will cause your wheels to spin but literally nothing to happen.
Collision functions need to be better optimized or shifted to gpgpu (crashing into a building with lots of particles causes my fps to tank below 15 on a gtx 970.) Strange is that it doesnt happen immediately when crashing into things, only a few seconds later when everything is settling.
occasionally on map load the wheels will spin and nothing will happen (much like the first one)
My desktop: FX6300, zotac GTX970, 16GB RAM, Samsung 840 evo 500GB SSD, 500GB HDD, Windows 10 Pro.