i know it's far off, but what about the DLC?

so i know it's still at least a year away, but all i can say is that time flies, so my question is for DLC what would it specifically be, would it be likeminipacks where it is like "diesel DLC" "wankel DLC" and so on, or would it be more like just added engines packs where you get one pack with diesel, wankel, etc (example) and another pack with hubrids and electric and so on, and what would prices be, because if they are just like the "diesel DLC" i couldnt see you guys charging over 99 cents for it versus engine packs where a 2.99 price would be justifiable, also would you guys get DLC happy and turn into cod where it is like "slightly different shade of magenta engine cover DLC just 99 cents", because if that happened i can see you'd get a lot of hate.