Seeing as it's kinect capable (for little kiddies air steering), I'd just about guarantee it will have split screen. Although mind you, they scrubbed LAN in forza3 so that everyone had to go out and get xboxlive gold subscriptions cos they were loosing so much money when people could have all the fun they wanted without the fee-for-play service
I was trying to play a local Split Screen but when we both got into the race at Laguna Seca, only the host profile’s car had sound. Player two’s car has no sound and also all assists are reset to the easiest setting and …
No, Forza Motorsport split-screen is not a supported feature at launch, and is not expected to come any time soon despite it having been available in several past games in the series. This was confirmed by Turn 10 Studios in the official Forza Monthly livestream for August 2023. j0Ctr.