I'm watching a stream of the release version of 0.13 at the moment; It seems they've got the colors working properly since I've seen the same car in two colors and there is a functioning color selector when you select the car from the menu. No sign of the AB car though, so it's likely it won't come just yet
I highly doubt we will get the AB until the next update as I feel the main focus for this update are the Automation cars.
But it might come. Assuming this is a similar situation to the Wentward (I'll keep mentioning it anyways), and considering it looks about finished... it may come in the update.
I am mentioning about it in chat and they're ignoring me so I don't think it's coming... or they have been told to keep quiet about the AB
2.5 hours left... https://www.timeanddate.com/countdo...T11&p0=179&msg=BeamNG+0.13&font=cursive&csz=1