Car Game. How to change angle of car to follow slope?

I would like to create a car racing game where the car always faces to the right (so you see a side on view) and moves over land/platforms. What I can not seem to figure out is the movement combination. I can create the character as a platform char so it can jump and move etc, however the char is always horizontal and does not change angle with the slope of the platforms. I have tried changing the collision points on both the char and the platform. I have added physics but that doesn't seem to do it. I am sure the answer is simple but it is alluding me
Any ideas how I could do this?


