@jokiin - Do you have the figures for wattage drawn for motion sensing only vs motion-sensing + recording? I would have thought they'd be quite some difference.
And it's not simply about battery use, it's about the potential of having required recordings written over. If I were to park my car overnight, say from 17.30 hours to 08.00 hrs, then the only way I would be able to guarantee the capture of all parking instances would be to use normal quality on a 64GB card, bearing in mind that the BV isn't noted for the excellence of it vid.
Sorry, but the BV parking feature is junk.
@ Phil - As Ralph has said, changing the G-sensor won't have any effect on the motion sensitivity on the BV, even when the MS is on its very lowest setting.
Regards alternatives, the Thinkware F750 looks interesting - see Thinkware F750 sub forum/thread. I'm currently researching, with view to offloading my BV on eBay! Clearly, I need to research longer and harder than when I purchased the BV! There is some suggestion at present that the F750 parking mode only works with a hardwire solution - again, need to fully investigate.