I Need help Making A Race Car Game Where do I Start?

Question

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Answer 1

Start with a Plan.
Do a little research
https://www.gamedev.net/start-game-development/

What platform will your game be on?
What game Engine do you want to use?
Do you know any programing languages?
Choose the language that supports game engine.
Design your game assets.

Do more research
https://www.google.com/search?q=search+for+how+to+start+game+development&oq=search+for+how+to+start+game+development

Answer 2

You need to start whit track and cars.