Car looks stunning - really like that front bumper and pearl white has alwas been one of my favourite colours along with candy apple red (Now that on a 350 would look amazing I reckon!).
With regards to wrapping you def need to tell your insurance, and Ideally I'd recommend that you should tell the DVLA about the wrap as well especially if it's a complete colour change.
It's the DVLA database that the police use to check car details - if a plate comes up showing a red car but it's now white, expect the plod to pull you over for chat. Obviously you won't have done anything wrong but they don't appear to really like having their time wasted