I need help identifying the items in these pics. Anything about them is useful. My great aunt knows I collect cars and diecast stuff, and she's apparently cleaning the house. This house is the same house my grandpa grew up in as a child, so there is a lot of older stuff in it. She said she'd give me the car stuff, which I'll happily take, I just like to know what it is, :).

If it helps any, I'm in the usa, and my gpa is in his early 70s. That should help narrow the scope a tad bit.

First up are these two older diecast cars.

Second, it looks like a slot car thing, but I'm not sure. It says 'The Child Guidance Highway System' on it. Thoughts?