Ok so first I would like to say how much I love forza horizon 3 it’s amazing am I right! But for some time now I’ve been jumping from server to server trying to find other players who like me have created there own mad max style cars there just doesn’t seem to be any one out there I’m alone! Or am I?? If like me you want to cruse the wasteland in your v8s please message me and we shall ride eternal shiny and Chrome!. Also I would like to say I was very happy yet disappointed at the falcon Xb barn find they reference mad max even give us the flat hat super charger but no front bumper option? Why? 
and I really think a mad max Dlc should be made I would pay for that any day of the week! I have bought the season pass and the hot wheels expansion now please give me mad max!!!
Oh wow, now I realize what that gigantic front bumper in the Ford Ute is for, lol. Never caught the drill. 
Unfortunately, the XB Falcon doesn’t seem to have anything of the sort. Only the livery. But it was probably because they’d have to pay Warner Bros. for the rights to use it. Other cars like Charger, DB5, etc. are thus much easier to replicate.
you turned this into a wish list with your last line
Did you ask for this a few months ago as well…if not you aren’t the first to request this, there has been many requests for this now since release and as pointed out above and below why it wouldnt happen
not likely to be another expansion especially with fm7 out next month
For a Mad Max DLC they’d have to pay Warner… Can’t be done at this point.
I’m sure it was considered during development, since the folks at Turn10 seem to know their cars and pop culture, but it may not have been feasible, sadly. 
They could’ve added the Interceptor, though. I mean, they did add the Regalia! 
Please continue to use the separate Wish List threads pinned in the FH3 discussion forum.