Key ent key values?

Any way of getting key values of an ent? The ent:GetKeyValues doesnt seem to work.
Help would be appreciated.

http://wiki.garrysmod.com/page/GM/EntityKeyValue is your best bet.

How do I use it? I tried printing val and key and even the ent class. Nothing so far.

What do you mean by key values?

vehiclescripts, to be precise. Just trying to find a better way to get them rather than decompiling all of the TDM cars

They are not defined in the models, so decompiling them will not work.