This is a very good and thorough video of the functionality and image quality of the dod 460.
He covers basically everything. I forgot to mention that it also has a speed sensor so you can have your speed recorded in the video to show that you were not speeding or the other guy was but just like voice recording and standby recording you can disable these. It has a capability to use 64g micro sd, it says 32 but dod has a link which enables you to expand to up to a 64 but you have to use a good quality card like Samsung. Cheap cards such as sandisk wont work and cause the camera to malfunction. Dod has a list of the specific cards that you can use with their cameras.
I run the 470 up front and the 460 out back so i dont have a personal recommendation that ive used first hand for a cheaper rear camera. I can say that the 460 is a great camera and i highly recommend it. I had that one first and aquired the 470 later, both great but 460 is more than suitable to do the job.