After more 'net surfing, I've come to the conclusion that there are no 16 in.
OEM near-aero wheel covers that meet my desires.
But all is not lost. Perhaps others, especially those with 15 in. wheels can
profit from what I've found.
The best sites I found for searching are:
Olds Delta 88 hubcaps. Hubcaps Heaven and Wheels (Posted by cfg83.)
Oldsmobile (Cutlass, Achieva, 88, 98, Ciera) hubcaps and center caps
Buick Classic Hubcaps, Buick Antique Wheel Covers and hub caps - Hubcaps.com
Hubcap Capitol .
During my searches the term "racing discs" and "Full Moon covers" kept
coming up. Essentially these are the same, and are slightly domed
aluminum or stainless steel full whel covers.
Racing covers are available in both screw-on and snap-on versions. The
screw-ons require taping 3 holes into the wheel itself. The snap-ons mount
with spring steel tabs that mate with the detent/ridge on the outside of a
wheel that originally came with OEM wheel covers. Racing covers are
available for wheel sizes from 13 in. to 17 in. from different vendors.
Although many vendors offer racing covers, there appears to be only three
manufacturers. The difference between them being the number of spring
steel tabs that secure the cover to the wheel. Although I can't be 100% sure,
it appears that none of the three have a heavy wire ring to tension the tabs
for greater holding force. Different vendors carry the different covers and
you have to look closely at their photos to see the difference in the tabs.
Here are some typical sites: (Prices for 16 in. covers. Check sites for prices
on other sizes)
Universal 16 inch Hubcaps (4 for $99.99)
Racing Disc Hubcaps (Pop-On). Vintage, Kustom Wheel Covers (4 for $99.99)
Full Moon Racing Disc Hubcaps, Stylish Look, AutoAmenity.com (4 for $124.50)
Stainless Steel Racing Disc Full Moon Hubcaps 16" (4 for $93.97)
The originator of the racing disc is MOON. They carry both the screw-on and
snap-on covers. The 15 in. size go for $128.00 for 4. However, 16 inchers go
for $202.00 for 4. Why? I simply don't know, although they are "no coat"
whatever that means
Specialty Equipment Manufacturer Mooneyes Online Store
There is also a smooth surface, high domed full cover called a "Smoothie:"
Smoothie Hubcaps, Baby Moon or Moon Hubcaps Wheel Covers (4 for $149.00)