There are a few easter eggs hidden in this game, at least three of them actually.

1) There is of course the tablet on the table next to the computer that shows the main screen of the car mechanic simulator game.

2) Also, if you look closely at the coffee machine, you will see that as well as selling different types of coffees and lattes, it sells brake fluid, motor oil and engine coolant. Tasty!

3) Also, if you go next to the parking door, where there are three green jumpsuits hanging on the wall, and you look at the tool counters on your left, you will see that one of the blue gallons that look like motor oil, has the bi pride flag on it, with the words "proud to be fluid".

4) If you look outside by the windows over the garage doors that are used to quit the game, you can see what looks like the Empire State Building and the One Penn Plaza. This would mean that what you see far on the horizon would be the skyline from New York City. I am not sure, though, why the developer playway based in Warsaw, Poland would use that skyline, so I might be mistaken.

Have fun trying to find those easter eggs and don't hesitate to report if you find more of them!