The problem is that SA:MP is very very limited at these things like you can do this in MTA because its not so limited. We can try to do these but it would create alot of problems like if u crash into a wall the object(mod) would not turn into a crashed object or stuff like that. Also if someone has mods for vehicles and it looks completely different then the original model it would like look shit because other players would see the normal vehicle mod and the floating objects that are attached to the vehicle. And yeah in MTA you have an option for vehicles mods that will download on the players pc while connecting and it's not limited as SA:MP as i've said. I don't know it's a nice suggestion but yeah we'll look at it and see the possibilities of realizing it in SA:MP. Thanks for the suggestion its really cool.