Nothing to add here that hasn't been said. I had an arctic white corvette. P21s is a great wax for it's price but on white a sealant is the way to go. Do yourself a favor and pick up an $11 bottle of...
For me, clay has never ended up as filthy since that initial decon when my car was brand new. And mine was prepped btw. I followed it with an AIO then a pure sealant. It went from white to blinding.
Got me a gallon of Megs QID. Great for IP audio etc.
Dash pad, door vinyl gets spiffed up with leather conditioner.
I like Z10. Not shiny not greasy smells great.
I haven't yet, but that's what I bought it for. Sometimes GDWM gets a little tedious for me and doing searches showed the bone to be pretty popular in this regard.