I have to say I'm not as excited about it now as I was before since I read that the track didn't change at all....while I liked the old test track it's always fun to get something new....to me it sounds like it's just going to take longer to get on the ride with everyone making their own car...i can see how some people could take forever doing this
http://land.allears.net/blogs/dnews/2012/08/imagineer_reveals_details_abou.html