The World Ford T5 Registry is a volunteer-run community and global database dedicated to documenting, preserving, and connecting surviving Ford T5 cars. The T5 was the name given to the Ford Mustang sold in West Germany from 1965 to 1979, where Ford used the alternate name to avoid a trademark conflict with German truck manufacturer Krupp. Because these cars are rare, dispersed around the world, and sometimes misidentified, the registry helps owners record their vehicles and share information about their histories.

Visitors can create a free account, submit a T5 registration with vehicle details, photos, and history, and explore the registry. The site also provides community forums where owners can discuss cars, share knowledge, and connect with fellow enthusiasts, as well as updates about new registrations, events, and rare parts. Donations support hosting, development, and outreach. The registry is not affiliated with Ford Motor Company and is maintained with volunteer effort and enthusiast contributions.