Gunderson Concarril, is a 100% owned subsidiary of The Greenbrier Companies. Located in Sahagun, Mexico, this facility builds intermodal and conventional railcars. Concarril services the North American freight car marketplace from nearly 500,000 square feet of leased space at Bombardier's Sahagun, Mexico facility. Current capacity is about 4,000 new freight cars annually from two production lines. In addition, Concarril has a full-service wheel and axle shop.