KBB has posted an article for a buyers guide for the Genesis G80. They have a build and price configurator to get a fair purchase price and a 5 year cost to own. Full reviews on how it drives and it's all like. Also a midsized luxury sedan buyers guide before ultimately selecting one.
https://www.kbb.com/car-news/all-the-latest/genesis-g80-midsize-luxury-car-new/2100001606/
From what I spec'd on a 2017 Genesis G80 with the 5.0 option, white with black interior, it came up to a fair market range of $50,522-$52,813. Fair purchase price of $51,370.
MSRP is $55,500
Invoice is $51,987
They also provide a little finder to see where there are models available!