CAR DEMO
The oimo.js after both of the following builds in preview release 17 Oct 2016 and 18 Oct 2016 is commit 2aa256e
On BJS build 17 Oct 2016 preview release of babylon.max.js is commit b6ce1ef
On BJS build 18 Oct 2016 preview release of babylon.max.js is commit b25adf8
After checking the affects of all commits between these builds it is the WorldScale change that prevents the car moving in 2.5
Commit b6ce1ef on 17 Oct 2016 Car Demo works
Commit b25adf8 on 18 Oct 2016 Car Demo no longer works
Commit b25adf8 18 Oct 2016 line 39966 this.world.worldscale(1) removed Car Demo works as before
GRAVITY
Commit b6ce1ef on 17 Oct 2016 gravity 9.8 "too fast!" box falls through ground
Commit b6ce1ef on 17 Oct 2016 gravity 0.98 box stops on ground
Commit b6ce1ef on 17 Oct 2016 gravity 9.8 all positions increased by 10 box stops on ground
Commit b25adf8 18 Oct 2016 gravity 9.8 box stops on ground
PADDLE WHEEL