On board camera systems...?

[clc34]

So, I have been out of the loop on this for awhile, and have recently been in talks with some people about building a time attack/time trial car/road race/etc...and was wondering what is a good 3-4 camera system these days? I remember years ago vuz systems were good, but it seems they no longer exist.

So what has any used or recommend?

Thanks in advance for any feedback.