- 186 was built by the St. Louis Car Co. for Dallas Consolidated Electric Street Railway in 1913.
- She served for 43 years in Dallas before being retired in 1956 when the streetcar system was abandoned.
- She was stripped of her running gear and electricals and sold to a private individual who used her for a hay barn in far North Dallas.
- Ed Landrum, one of MATA's founders, acquired the car in 1979 and cosmetically restored her that year.
- 186 was originally displayed in the Texas Sports Hall of Fame in Grand Prairie, Texas.
- When the museum closed, Ed removed 186 and leased it to MATA.
- MATA restored the Green Dragon to running order in 1989.
- Since the original style Stone & Webster "maximum traction" trucks were not available, MATA gave 186 car #369's "type B" trucks that have downward curved frames that provide adequate operational clearance.
- Car 186 is 42' long, 8' wide, weighs 21 tons and uses General Electric K35JJ controllers.
- The Green Dragon has four MV101 40 HP 600V DC motors driving 27" diameter solid wheels.
- 186 was originally sponsored by the S. J. Stone company, a successor to the Stone and Webster Company that once operated the Dallas streetcar system.
- The Green Dragon is now sponsored by the Meridian at State-Thomas and the Worthington of State-Thomas.
- 186 once actually ran on McKinney Avenue on the SMU line. Since SMU students fondly called her "The Green Dragon," it seemed appropriate to restore that nickname to the car.