I picked up my 2020 model last week and the only difference I can see from the 19 model I test drove is the lane keep assist seems to be better, with more small steering corrections rather than fewer but bigger corrections in the tester.
I picked up a 2019 2 weeks ago for $47,000 + 5 years of free service (510,000 Kia points) and they bought me out of my Acura lease which cost them about $2000 over what Acura paid them for it. Just tell them you are looking at a G70 it seemed to motivate!