Moddable?

[64Pacific]

I have a lot of models of trucks (it's a hobby of mine), and I would love to put those into the game. I have a few older trucks and I am working on some unique ones (1978 Kenworth W925, 1978 Kenworth 850, 1970's Pacific P12W3 Ultra, my '64 Pacific is planned). I personally think that, and this is my opinion, that having a game like this and not allowing it to be modified by the user with the addition of maps, vehicles and scenarios/missions will limit its sales and the life of the game. I am a programmer, and I understand why you would want to stay away from this - it's difficult - talk about a can of worms. Maybe a moderator or somebody with some "inside" knowledge can let us in on a reason for the developer(s) staying away from a moddable product?

By no means am I complaining, nor am I trying to offend anybody - my apologies if this post has come out seeming that way. I just am thinking that we could start a huge community of modelers, and developers that could greatly benefit both the users and the developer, and allow an already amazing looking game to prosper!