"You cannot claim this city because you do not own some of the content used to create it."

I think the version count just doubled with the Nissan Leaf Charger

1. SimCity (SC)
2. SimCity Limited Edition (SC:LE)
3. SimCity Digital Deluxe
4. SimCity + Digital Deluxe Upgrade
5. SC:LE + British
6. SC:LE + German
7. SC:LE + French
8. SC:LE + British & German
9. SC:LE + British & French
10. SC:LE + German & French
11. SC:LE + British & German & French
12. SC + British
13. SC + German
14. SC + French
15. SC + British & German
16. SC + British & French
17. SC + German & French
18. SC + British & German & French
19. SC + HV
20. SC + HV & British
21. SC + HV & German
22. SC + HV & French
23. SC + HV & British & German
24. SC + HV & British & French
25. SC + HV & German & French
26. SC + HV & British & German & French
27. Nissan + SimCity Limited Edition (SC:LE)
28. Nissan +SimCity Digital Deluxe
29. Nissan +SimCity + Digital Deluxe Upgrade
30. Nissan +SC:LE + British
31. Nissan +SC:LE + German
32. Nissan +SC:LE + French
33. Nissan +SC:LE + British & German
34. Nissan +SC:LE + British & French
35. Nissan +SC:LE + German & French
36. Nissan +SC:LE + British & German & French
37. Nissan +SC + British
38. Nissan +SC + German
39. Nissan +SC + French
40. Nissan +SC + British & German
41. Nissan +SC + British & French
42. Nissan +SC + German & French
43. Nissan +SC + British & German & French
44. Nissan +SC + HV
45. Nissan +SC + HV & British
46. Nissan +SC + HV & German
47. Nissan +SC + HV & French
48. Nissan +SC + HV & British & German
49. Nissan +SC + HV & British & French
50. Nissan +SC + HV & German & French
51. Nissan +SC + HV & British & German & French
52. Nissan + Standard

Wow that's a lot of incompatible versions.  And they said they'll remove the Nissan download after 6 months. Not that someone would know they need to download the Nissan DLC to claim a city since the dialog is simply "You do not own the content to claim this city"

And they could look around the whole city and find no Nissan DLC in the whole city-- all that matters is that the person who created the city, at one point, downloaded the Nissan DLC and then maybe never found it useful enough to place.

There's no transparency as to why a city is unable to be claimed: what a bug

We should be able to claim any city--just not plop stuff that wasn't bought

"plop what you bought" would be a great slogan