Earnings

The median wage for automotive body and related repairers was $38,380 in May 2012. The lowest 10 percent earned less than $22,530, and the top 10 percent earned more than $65,390. The majority of repair shops and auto dealers pay repair technicians on an incentive basis. In addition to receiving a guaranteed base salary, employers pay workers a set amount for completing various tasks. Their earnings depend on both the amount of work assigned and how fast they complete it.
 

Source:

Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2014-2015 edition, Automotive Body and Glass Repairers.