I went to try and add my cars to "My garage", but the "Manage Garage" sidebar never appears (as shown in the "help").

I apologize if this has been covered elsewhere, or is a subscriber only feature, but I couldn't find anything relating to it anywhere else.

No, this is a good question. I already have a car in my garage, and I see choices to edit or delete it, but no way to add a new car to the garage. I'll get with Mike and look into it.

I take it there never was a resolution to this?

Zombie's Rule

VERY soon...