Makes sense
beware real low end IP security cameras as not all/many are 30 fps, and if mix vendor, model, etc you may end up with varying latency (causing sync issues)... so just be aware of going too cheap
Next issue to consider is support. There are numerous recent IP camera vendors that are complete fly-by-night operations. And you'll be lucky to have decent firmware/drivers, and who knows about future updates.
Then there is the protocol with some simply streaming HTTP vs RTSP vs NDI, etc. And then you need to set up the receiving end to go with what is being sent. And now we reach, maybe, the end of where I can advise at a product level. I'm using a Tier 1 vendor NDI PTZ camera, with robust local support (and $2K per 1080p camera). There are lots of recent knock-off NDI PTZ cameras for $1K (not as good optics, nor motion controls, and really bad firmware). Then there are lots of IP security cameras, with large range of quality ... and NONE of them designed for real-time live streaming. Then, there is the consideration of RC car motion and optical focusing. What is depth of focus, etc. Is image stabilization important (vs how solid is camera mount). Unfortunately, I don't have a vendor/model recommendation for you
I can't caution enough about buying too cheap unless you are prepared to be your own software support expert.