You can see that the tracks module was replaced with a wheel one, and also the special garage for the event.
https://pp.vk.me/c637925/v637925938/a38c/mkaDeVatPeQ.jpg
https://pp.vk.me/c637925/v637925938/a396/UpLmfvfdZ6w.jpg
https://pp.vk.me/c637925/v637925938/a3a0/NkImHifrZQ4.jpg
https://pp.vk.me/c637925/v637925938/a3aa/w4BEWBpUExI.jpg
https://pp.vk.me/c637925/v637925938/a3b4/QOg8mawIVww.jpg