DT2

You can get a really nice dash cam for half of that. I got a "cheap" one two years ago from Target for $89. Has a front and rear camera. You can buy a hardwire kit online from the company website if thats what you want to do and it still comes out less than Toyota. I have the Rexing DT2 and then another one by Rexing that I can move between our other cars. The recordings are super clear and its easy to access the SD card and transfer. Highly recommend. 

I use the Rexing Dual cam. Reliable and fairly priced at Target.

i got a rexing because it was on sale for front+rear, but viofo probably better. although the rexing literally made the same startup sounds and has the same interface as the viofo so its probably the same thing just different branding.