Carplay Apple Maps

I use Apple Maps in my car's Carplay. I have Home and Work destination saved. If I open Apple Maps from Carplay Screen of my car and I click "work" destination then I obtain only ONE route to go to work (the faster one), If I do the same thing from the iPhone screen (the iphone is connected to carplay) I obtain 3 routes (1 with toll, 1 without toll, 1 without toll but slower) then I can choose the one I prefer to go through.

Same thing happens when I go back home in the evening.

I really cannot understand why the same app in the same "situation" gives different feedback if activated by carplay instead of the iphone screen.

Thanks for helping me :-)

Ciao, Andrea