I got the forza cars pack from the store and I can not find the cars.

You will find it here: Get Forza Horizon 4 Mitsubishi Car Pack - Microsoft Store

@ TooFst240 , the LP640 has now been gifted out in game to all those who had participated in the KOTT event on the forza rivals, the reason for the delay was the paint on the car was being finalised before being issued to gamers.

@N0tRn1NgBak98 , turn10 gift out dlc reward cars for participating in the KOTT, these cars can only be used if you have paid for the content, if you have dloaded the free car from the pack that the gift car is from then you can store it in your garage
until you purchase the pack or the car from the marketplace, to purchase the pack/car, on the main menu is an option to go to the marketplace, then choose car packs, you will then see a list of packs available for purchase and in each of these packs the cars
can also be purchased seperately (except for the car which requires you to purchase the complete pack).

for all future enquires about forza dlc/gift/unicorn cars i'd suggest using the official forza forums.... link below

forums.forzamotorsport.net/.../ShowForum.aspx

by the way im not a mod or support guy, i just play too much forza and saw this so thought i'd help out

Hey, guys! These are not sent as codes. They are provided as entitlements based on the purchase you make for Forza Horizon 3.

For the Ultimate Edition, you should have access to the
Car Pass and
All-Stars Pack. If you see that these are already purchased on the site, I suggest you do a search for their specific titles on the Xbox One console and download them directly from there.

For the Standard Edition, it should have come with the Rockstar pack and the Meguiar's Car Pack, but I am unable to find those online at this time. MrEldorado, can you please check your Manage Game section for Forza Horizon 3 to see if that content is there?
Thanks!

go to marketplace find the free car for the pack download it then go to the marketplace in the forza 4 game and go yo car packs you will find the new november car pack. This will be what you have to do for all the dlc with the season pass.

The Forza 5 Limited Edition includes:

Forza 5 Game

Steel Book Case

Car Tokens – 1,250 car tokens that will allow Limited Edition owners instant access to any car in the game

Decal Sheet – featuring Forza Motorsport 5, Xbox One, and Audi window decals

Limited Edition Car Pack – This five-car pack features new cars that are already destined for legendary status

VIP Membership – Forza Motorsport 5 VIPs enjoy exclusive benefits, including 2x player reward acceleration, access to exclusive multiplayer events, an exclusive in-game player card badge, and in-game gifts from the Forza community team

Day One Car Pack - A three-car pack featuring special liveries and custom tuned cars.

.

Pre-ordered and fully paid. It's worth it. Every Forza nerd should have got this. I wouldn't call myself that but the game and 1080p-native graphics look amazing.