ATTENTION GIGABYTE:
MAJOR PROBLEMS WITH THE PACK!
http://www.youtube.com/v/3o4zRODDkn8
I re-installed your pack about 7 times, so I know its not me.
Prior to me installing your pack on its own, I have had a local cache directory of all my favorite mods, which included GMOW CMOD VMOD and TINYCARS. Your pack was merged onto this cache. I am redoing my local cache and I have found that your pack on it's own is quite faulty.
I just cleared my GMod 10 folder, and installed JUST YOUR PACK. There are so many missing materials its unreal! I will be submitting a pack of all the missing materials.
Here is proof I have the pack installed properly:

I don't mean to be flaming you, so don't get me wrong, I want this pack to work for everyone.
Edit:
Please ignore the audio not being synced, I just slapped this video together using Source Recorder set at default settings.
Edit:
If you get this problem, you may use an unsupported version of the vehicle pack that I created by pming me for the link.