I currently have a raspberry pi 0 hooked up but it takes too long to boot up and get ready to start the recording. I got it initially as there was no way to view the videos in the car but now that is an option I want to have a dumb drive hooked up that jut records but I remember reading about how raspberry pi with a sd card is a better option for recording as the thumb drives often corrupt the data. There was also mention of SSD drives but my car doesn't seem to have enough juice to boot up the SSD have you found one that requires less power and works in a Model S?