I briefly considered switching to steel wheels and 16 aero hub caps.
But the expense would be rather extreme to pickup 3% more range on the highway.
This was back when I had a confirmed source for $70 each steel wheels that fit the leaf, I bought one, waited for it to come in, confirmed that it fit the leaf by installing it then when back to buy 3 more and they were all sold out. So i called the place and asked when i cpuod expect more, told me that was a one time deal and were not getting any more in.
Now that lone steel wheel is my full size TPMS-less spare with a nearly warn out ecopia tire.