How do I keep first person working in my racing game, but adding split screen for 2 players ?

I need help with my game with first person, I have 2 cars for the game, one works and one doesnt. I am wondering how to fix that other car and implement split-screen for my whole game.

I am assuming you're building your race track top-down... Out of the box? No go. Only one camera view is possible in C3 (two, if you mess with the 2D/3D layer property), but there might be a workaround.

-Have your game physics etc. run on a 2D layer.

-Have two 3D layers for the driver POV with a HTML layer between them to make them render separately. Make sure the layers have Force Own Texture ticked

-Make the scenery in the 3d layers move in relation to the car (which is static) instead of static scenery and moving car - this gives you overlapping POV views of both drivers. Relative position/rotation taken from the 2D layer.

-Used a Layer Effect to crop and shift both views to the correct position - there's a 3rd party effect that can do both shifting and cropping in the Free Addons section - the name escapes me ATM.

That should give you what you need. In theory.