32 bit build has been added. As for the missing cars make sure you are pressing 'J' to spawn them. Thanks for playing!
tnx, but i see you compiled it with unity v2017.3 that is not XP compatibile... i'll retry if you decide to use v2017.2 or apply this trick: https://blogs.unity3d.com/2017/07/10/deprecating-directx-9/