Well, atleast we get to see someone besides the devs test out the update! (Still looks promising anyways...)
That version of the beta exports the cars with too little gloss in the paint colors, but you can change the paint within BeamNG to get the glossiness how you want it currently. I believe they're planning to update it very soon so the paint colors in Automation export more accurately into BeamNG, though not sure if pearlescent and flake effects will also apply.
My sleep schedule ended up kinda off sync with the shout from the rooftop moment so I won't be posting much more for 8 hours or so, but before I sleep, here's a sneak peak at some downhill mountain rallying on the same map. Gfycat Video - Click to Play - Direct Link
They have them, the paint is just set to matte in their (those users) vehicles. The color selector works too, so one can change that in-game if wants. Also big 'NOTE': What you are seeing in these videos are early version of the update
Also since we are speculating about updates afterall... As you can see all of the moments where the vehicle selector was used were cut out from the videos. That might sugest something bew over there
Hmm.. take a look at Neilogical's video. It shows the selector, yet I can't see any new car. I hope we can port Automation engines into existing cars. I love the new sounds and the engine models, and they should fit perfectly on a Covet or the D-series.