Since the most useful jacking points and many maint bits are behind the rear diffuser, I've though of replacing the screws with DZUS fastners:
Has anyone used these before? The design looks really nice:
"Every fastener in our Dzus line is based on the rugged spiral cam stud and spring-wire receptacle design. They're much better than other 1/4-turn type fasteners, especially after prolonged use. The fastener provides a firm locking tension with a crisp and positive lock. The end of the stud cam presents a solid over-rotation stop. Wear is minimal and performance is maintained over thousands of use cycles. Stud shanks are smooth, with no pins or lugs to hang up in support holes. 5/16" diameter."
We would need 18? total for both the diffuser and undertray coverage, so 10 of each size (0.5" and 0.6"). Self-ejecting would be nice, but I'm not sure what all parts you would need, or if the receiver plates need to be riveted as well. Might not be a plug & play replacement, it seems.
Still, the price is right at $1-$2 each. Anyone have any experience with these?