Do you have any tutorials for drawing cars in a comicbook-style range of detail? (Also, car interiors?)
I don’t really have anything about drawing cars in particular, I would first suggest doing a google search. For example, this website has a bunch of different car tutorials.
It’s always important to draw from reference. Google the type of car you want to draw and sketch away! Cars are kinda difficult, try breaking them down into their shapes (boxes, triangles, etc.). As long as you can draw simple 3D shapes, you can draw a car.
An interior of a car is like a little room. Try to figure out where everything is and sketch the space. You can look at my room tag for some ways to deal with this. Make sure to use reference! Stretching from a picture will make you life a lot easier.
It will be difficult at first, but keep practicing and you’ll be great at it. Good luck!