The Collision Repair Company's Courtesy Vehicle
I was sitting at a red light this afternoon watching the approaching traffic. Two vehicles entered the left turn lane on the street to my left, one unremarkable and the other covered in advertising telling me that it was the courtesy vehicle for a well known collision repair company. Both were signaling for the left turn.

Motorcycles are nimble, brake and accelerate quickly and the temptation to race through other traffic can be difficult to resist for some. The riders weaving through traffic are usually young males who have not yet realized the risk that they are taking or imposing on other road users.