Acceptable translations as of 25/03/2017:

1. Where is this tram going to?
2. Where is this tram going?
3. Where is this street car going to?
4. Where is this street car going?
5. To where is this tram going?
6. To where is this street car going?
7. Where to is this tram going?
8. Where to is this street car going?
9. Where is this tram going?
10. Where is this street car going?
11. Where is this tram going?

Порядок слів неправильний. Порядок слів в Present Continuous має бути таким: Where is this tram going?