Sure, sign brokers are very helpful in locating a signwriter that specializes in car graphics.
Vehicle signage can be as cheap or expensive as you like. The amazing thing about vehicle signage is it can last for as long as the life of the vehicle it is on; or just as long as the advertising campaign.
It is up to you and there are all types of vehicle signage – permanent sign writing, vinyl signs that can be permanently attached to a vehicle and even magnetic signs that can be used whenever you wish.
Just think about how many people will see your sign compared to other forms of advertising. The vehicle, especially if it is a truck travels literally hundreds, maybe thousands of miles a week.