7" screen in a rearview mirror, unless you are driving a truck is a no no. As per Dodge.
Radar for in the front is limited to those reversing sensors at present, but I'm sure the systems that Mercedes and now BMW use in their top range cars will come out in after market versions but will be expensive.
Also take note I didn't mention that in some parts of the UK ferrets are stuck down mens trousers.
Oh dammit I did didn't I