Love this game! I even backed it on Kickstarter so when I saw it was in Beta I was soooo excited! If I may offer a few suggestions....
Many people I played with said that the rules/video is of an entirely different game so when they see this...they kept saying "uhhhh this is not the game in the video. Dad vs Daughter on Youtube do a great explanation and playthrough of this game if you want to link them. Also I noticed there are no English rules uploaded.
EVERY and i do mean every person I've played with said that the game board is WAY to busy and find it hard to follow there cube/cars etc. I kinda agree with them. I know the physical copy of the game has all the pictures along Route 66 etc...but that real board game has a huge 6ft roll up map and its not condensed to a computer screen. Perhaps for the BGA version you make less of a busy background? It doesn't bother me so much because I already knew how to play the game but it does make it easier for the eyes if it wasn't so busy?
Hope my suggestions help! Love this game! Big fan!