In Axle City of Christmas, Crusher shows Baby Lukas to meet Crusher's best sister named Gabby but Baby Lukas is jealous (well Baby Lukas is Crusher's cute boyfriend anyway) so Crusher feels worried about Baby Lukas. When Baby Lukas is alone, Baby Lukad forgot his winter clothes at his home for late after the racing

Gabby : Brother, What happened to him

Crusher : I have no idea, I'm better check on him drives himself to find Baby Lukas somewhere