That's not the complete list. It's missing 20 vehicles:
3 Land Vehicles
5 Water Vehicles
12 Air Vehicles
I have the list from the Prima game guide at home, but is a list really needed? If it's not unlocked through the story, just scan Gotham when looking at the map and it shows every single location. I've only completed through level 10, and I have every vehicle unlocked and purchased except the minikit ones and the multi-colored Batmobile (unlocked after level 13). Three of the ones I've unlocked are still deconstructed.
Just know that there are 25 land, 15 water and 15 air vehicles for a total of 55. 15 of those are unlocked by getting all the minikits in the levels (5 vehicles for each terrain).
The bitch is to remember to do the checkpoint races for gold bricks for many of these vehicles, especially the water and air ones. Again, the Prima game guide has a list of how many checkpoint races there are. I'm at work or else I would check.