I'm happy to share new mod I made:
Drivable Bus traffic pack. Not the whole pack but MC-12 busses are drivable. Get it from the Kenworth Dealership and you can switch the look by selecting a different chassis.

Get it HERE[modsfire.com]

Unpack downloaded rar and place scs file in your mod folder, and don't forget to read README.pdf.

Additional credits to @gutslab1 for the idea.

https://youtu.be/TVicOdgpurQ