Walls, windows, trees, poles, trains, boats and of course trucks... There is no surface is spared from graffiti.
I spotted this truck on the Westside of Los Angeles on a residential street. All sides were covered in paint.
Truck Graffiti - The Blood Clots
Truck Graffiti Close Up
Truck Graffiti - Drugs, Shux
Truck Graffiti - Zen