I recently applied Blackfires' All finish paint protection but I still want to add some form of additional "finish" after every wash. This is mainly to give the surface a shiney finish and not necessarily a protection as I am happy with the Blackfire.
Basically I just enjoy rubbing the bonnet

 

i use the jeffs acrylic glos after washing as a detailing spray.it really does the bizz adding that extra pop to the metalic

JEFFS Werkstatt Acrylic Glos

 

On a black car, easy.

Id plump for ag ultra deep shine of if you want it to mask some light swirls or marks then ag srp.

I have seen blackfire wet diamond used to good effect as well, i might try this at some point.

 

As above, Jeffs Acrylic Glos is superb in this respect, as it's 50% sealant 50% quick detailer, so ideal for the task in hand. Blackfire's Deep Gloss Spray Sealant is also a good product for this type of job too - see here:

Blackfire Deep Gloss Spray Sealant