>>5530465moderndayjames has a couple of perspective videos you can refer to in order to learn more about vehicle and hardsurface construction, I reckon you might find them useful.
He does have a specific video series on vehicle sketching, but it's probably better to go through some of the perspective basics first, too.
You can couple this with Scott Robertson's How to Draw for a clearer idea, too - though it's better used as a reference when you know what problem you have, rather than trying to read the whole thing as a textbook. Trying to grind through the whole thing can be an easy road to burnout.
For more modern cars with more organic, complex shapes - you'll probably be looking at XYZ shapes like what's covered here:
https://www.youtube.com/watch?v=AXn979hRyIsGumroad, Brainstorm and Schoolism all have ample resources you can buy if you want to look into it further, but these youtube videos should be enough to give you a decent start.
