Many games contain Easter Eggs (Easter Egg on wikipedia), and American Truck Simulator is no different. You may have found some of them already, but it's the time of the year now when you may be inspired to look for more.
Easter Eggs in ATS don't have any particular core gameplay role, but we have created a special Steam achievement for one of them. We thought we would hint at a few of them here in this post, but without showing their exact locations...
This is just a sample, there are more secrets to find. Please, don't spoil the fun for the others and do not reveal the locations of these secrets in the comments! Have an awesome time during Easter!
Source: http://blog.scssoft.com