Can anyone help with this vehicle issue

I want to create a cart that constantly moves forward and can be steered left and right on a slope, how can i do this? This was my attempt on trying to do it (Im fairly new to roblox studio so i dont know too much about it)
robloxapp-20240614-0800168.wmv (3.7 MB)

the attachment is my attempt at this idea me sliding down a hill with a cart using custom physics which isnt really efficent, i dont really know how to code the steering cart that slides down a hill like a sleigh since im fairly new to roblox studio