Welsh coal miners affected by black lung disease found work producing the Junior Forty 'J40' pedal car between 1950 and 1971. Workers at the Austin Motor Company's "Junior Car Factory" in Bargoed, Wales, produced this high-end pedal car using scrap materials from the Austin A40 Devon and Dorset production process. The J40 features an openable hood and trunk, spare tire, working horn, and battery powered lights.