Name of this truck is Hanahimemaru, 華姫丸 in Japanese.
Name of this car is Yukihime, "幸姫" this truck load this car
This truck name is Yakou sendan (夜虹船団) it means night rainbow team. Base car is ISUZU Elf. on the front, romantic phrase. I'll never let you go (もう君を離さない） Maybe this driver get good lady at last.
This art truck name is Abareguma. Base car is FUSO Fighter. Air brush is by Art king Yokawa. Please check interesting picture.