I didnt receive the download code for the Mclaren Senna !
i played the demo weeks ago.
from release i playing the full-game on OneX
How to get the code ?
so you are an xbox user i would recommend checking your messages box or just wait patiently.
if you don’t get the redeem code. just create a support ticket and one of the Customer Advocates solves this.
make sure you check their support site
https://support.forzamotorsport.net/hc/en-us