Car driving Games

Hi, I’ve been trying to code an open world car driving game placed In the city roller coaster challenge, but I’m not great at coding, so I can’t figure how to make acceleration, cars bumping into objects, turning, or really anything. I would really appreciate some help on this topic. Thank you!

After a lot of work, I figured out the basics of the car driving features, but the problem is that I’m adding in a plane feature, but my map isn’t big enough. Could someone please post links to some 3D environments? Those would be very helpful. Thanks!