Installation:
1. Dump the "ttc" folder into "mods\update\x64\dlcpacks" folder using OpenIV
2. Add the following entry to "mods\update\update.rpf\common\data\dlclist.xml"

<Item>dlcpacks:/ttc/</Item>

3. Spawn addon cars via SNT (simple native trainer). Spawn names are:
-"bus" TTC Orion VII HEV
-"airbus" TTC Orion VII Diesel Airport
-"ttcviidiesel" TTC Orion VII Diesel
-"ttcd40lf" TTC New Flyer D40LF

4. Templates are provided for your own liveries creation!