All of these goodies will be added on March 29.
Forza Horizon 5 Series 4 includes new Chinese cars, Horizon World Cup
Forza Horizon 5 gets nine new cars, new modes and more next week
Forza Horizon 5 - 9 New Cars Found In The Game Files!
FH5 Release Notes: January 30th, 2024 : r/ForzaHorizon
Forza Horizon 5 Now Includes The Rivian R1S and R1T
Forza Horizon 5 Series 19 Updates Include Four New Cars, Launch Control
Forza Horizon 5 Lunar New Year Update Patch Notes: New Cars, Cars Added to Autoshow & more
Forza Horizon 5's Latest Update Includes 5 New BMWs, 2 Rivians, Corvette E-Ray, And Event Customization
Forza Horizon 5 celebrates the Lunar New Year with new cars, new Drift Arena and more - Neowin
Forza Horizon 5 Season Change: Don't Take My Sunshine Away – GTPlanet
Forza Horizon 5 Update 21 Is Huge, Featuring All-New Photo Mode Options & More