Front and rear ( dual channel are no problem ) but if you thing rear camera as in a rear facing camera on your windscreen, then yes that's okay for recording the cabin, and close to worthless in regard to what go on out back.
IMO a rear camera should be on the rear window, so a front / rear camera + a cabin camera that make up a 3 channel camera and you will not find those yet.
wifi you can also find in dashcams, but it is simple wifi made to do settings changes and maybe DL a single video now and then, and it is slow wifi with a short range so even if it could it would be less suited to bulk transfer of footage.
Motion detect you can get as part of parking guard, but not really any smarts in it so it will just be saved on the memory card.
Live view i think you can get in some of the smartest dashcams, but of course only if your camera are on ( parking mode ) and doing that ( parking mode a lot ) can be a problem, so say you use parking guard the 7 - 8 hours you are at work, and overnight at home, you will be doing that upwards of 20 hours a day, so you almost need to be driving the remaining 4 hours of the day to make sure your car battery are fully charged.
On a car battery alone you can not get 5 - 7 days of parking guard, you will need a substantial battery capacity upgrade to pull that off.
Either by putting several car batteries in your car where all but the original car battery serve your cameras, you can get a devise that isolate other batteries like that, it is what are used in campers ASO so you don't risk depleting your car battery.
Or you can put in some of the dedicated dashcam power banks, though that probably going to be expensive.
Some of the current smart cameras have a cloud option ( small free space ) + additional space you can buy, i am not 100 % on board with how this work, i assume you need either a mobile data AP in your car, or a wifi AP in range.
If you go by mobile data, you will need pretty much 100% 4G speeds all the time, otherwise you can not move data as fast as a camera can generate it ( rule of thumb say 1 camera generate 100 MB every minute it record )
ATM the smartest dashcams around are probably the Blackvue and Thinkware cameras, but as i see it they can not do all you ask, and will struggle with some of the things.