The company was founded in 1983 in Beaumont, California, United States and is headquartered there. It quickly established a name for itself as a producer of quality products by capturing seven offroad national championships in 1992.
In 1993, tires swept both the 2WD and the 4WD classes at the IFMAR Offroad Championships, the company's second and third World Championship titles. 1995 saw Pro-Line win its fourth and fifth IFMAR World Championships at Japan's Yatabe Arena.
That same year, Pro-Line Racing purchased independent body manufacturer PROTOform Race Bodies, retaining founder Dale Epp to expand the company's market share. That partnership continues today and has placed Pro-Line Racing near the very top of the R/C body market.
Their marketing strategy has expanded in recent years to include PLUGZ, a series of custom Class II and Class III trailer hitch receiver covers for full-sized vehicles as well as So Real 1/24-scale diecast static car models.