Don't have a car but this seems like a good deal. Credit to HUKD.
Main Features:
SQ8 mini 1080P full HD car DVR camera recorder
High definition full HD1080P
Compact design, portable handheld
Video format: 1920 x 1080P, 1280 x 720P
Support TV out, TV monitor video connection
Image resolution:12MP (4032 x 3024)
Support 32GB TF card max. (not included)
Image proportion: 4 : 3
Support system: Windows ME / 2000 / XP / 2003 / Vista, Mac OS, Linux
Battery capacity: 200mAh
Working time: About 100 minutes at 1080P 30fps
Charging time: About 2 - 3 hours
Charging voltage: DC 5V
Interface type: Mini 8 pin USB
Camera lens size: 3mm
Package includes mini car DVR camera, USB / TV out 2-in-1 cable, bracket, clip and Chinese / English user manual
Video Review here: https://www.youtube.com/watch?v=dglv-6P8UxU
I have this camera, bought it during the ozb bday sale. Honestly, save your money. The size is cool but the IQ is dreadful and not worth using