I have not noticed anyone mentioning having it, but it do look like a cool camera for a large truck ( found a YT video )
But the large front unit are not something i would like on a car windscreen as its not stealthy at all at least in regard to its size.
Also no telling what the specs are on it, i think it is 1080p on each channel but the bitrate might be on the low side unless its made with really up to date hardware than can support upwards of 20 mbit on each of the 4 channels.
Good thing for the truckers is all 3 cameras seem to be waterproof, and in the YT video i found the side cameras was put of the mirror tree of a peterbilt truck and the rear camera wayyyy out back.
The 3 cameras are also "large" but will be just fine for a large stuck i thing, also the 3 cameras have IR lights it seem, so it must be able to change between daytime color footage and nighttime B&W footage.
Support up to 2 Tb storage on a external harddrive
and its tamper proof so i assume you need some form of password to delete files on it, and that's also
All in all look sweet but way overkill for a regular car, a larger van might go well not least as they mostly seem to have plenty of windscreen real estate, which you need with a camera this large.
http://www.gnetsystem.com/en/sub2/itemview.php?id=20