I will add our story to this..
A friend of the family was visiting my sis when she lived in thunder bay.
he discovered a kitten in his engine 4hours into the drive (this happened in January)
Not sure where kitty was but he had stopped for a Timmys & heard mew mew ... Luckily
"Lucky" spent the rest of the trip in the cab, snuggled up in the passanger seat. & found a forever home with them.