We have found you can put two "garden kneelers" (flat foam cushions about 6" wide, 13" long, 1" think) side by side inside one of those ubiquitous canvas grocery bags (the unstructured kind - wimpy on the bottom). Then hang that around the headrest posts so it makes an extra "seatback". This will let you recline the seat a tiny bit so the headrest is less of an issue, and your back still feels more upright because the back of the seat has been brought forward. We will take them out come cold weather (we made it through last winter without them), but for now they help.
This was the issue we mentioned at the very first test-drive as being hideous, but it is how they do new cars.
2012 ordered 7/29/11, delivered 11/8/11
new battery 1/28/19: 6,044 miles
Car killed 2/1/21 by careless driver at 85180 miles
2019 Purchased CPO Feb 24, 2021, SV Plus, 9250 previous miles